diff --git a/changes/honor-configured-controller-shortcuts-and-modal-routing.md b/changes/honor-configured-controller-shortcuts-and-modal-routing.md
new file mode 100644
index 00000000..3e4d8afd
--- /dev/null
+++ b/changes/honor-configured-controller-shortcuts-and-modal-routing.md
@@ -0,0 +1,6 @@
+type: changed
+area: overlay
+
+- Added configurable overlay shortcuts for session help, controller select, and controller debug actions.
+- Added mpv/plugin and CLI routing for session help, controller utilities, and subtitle sidebar toggling through the shared session-action path.
+- Improved dedicated overlay modal retry and focus handling for runtime options, Jimaku, session help, controller tools, and the playlist browser.
diff --git a/config.example.jsonc b/config.example.jsonc
index efd0fd7d..2d9c1c67 100644
--- a/config.example.jsonc
+++ b/config.example.jsonc
@@ -173,7 +173,11 @@
     "toggleSecondarySub": "CommandOrControl+Shift+V", // Toggle secondary sub setting.
     "markAudioCard": "CommandOrControl+Shift+A", // Mark audio card setting.
     "openRuntimeOptions": "CommandOrControl+Shift+O", // Open runtime options setting.
-    "openJimaku": "Ctrl+Shift+J" // Open jimaku setting.
+    "openJimaku": "Ctrl+Shift+J", // Open jimaku setting.
+    "openSessionHelp": "CommandOrControl+Shift+H", // Open session help setting.
+    "openControllerSelect": "Alt+C", // Open controller select setting.
+    "openControllerDebug": "Alt+Shift+C", // Open controller debug setting.
+    "toggleSubtitleSidebar": "\\" // Toggle subtitle sidebar setting.
   }, // Overlay keyboard shortcuts. Set a shortcut to null to disable.
 
   // ==========================================
diff --git a/docs-site/configuration.md b/docs-site/configuration.md
index dbf6725a..0eb3f330 100644
--- a/docs-site/configuration.md
+++ b/docs-site/configuration.md
@@ -536,7 +536,11 @@ See `config.example.jsonc` for detailed configuration options.
     "mineSentenceMultiple": "CommandOrControl+Shift+S",
     "markAudioCard": "CommandOrControl+Shift+A",
     "openRuntimeOptions": "CommandOrControl+Shift+O",
+    "openSessionHelp": "CommandOrControl+Shift+H",
+    "openControllerSelect": "Alt+C",
+    "openControllerDebug": "Alt+Shift+C",
     "openJimaku": "Ctrl+Shift+J",
+    "toggleSubtitleSidebar": "\\",
     "multiCopyTimeoutMs": 3000
   }
 }
@@ -556,7 +560,11 @@ See `config.example.jsonc` for detailed configuration options.
 | `toggleSecondarySub`          | string \| `null` | Accelerator for cycling secondary subtitle mode (default: `"CommandOrControl+Shift+V"`)                                                       |
 | `markAudioCard`               | string \| `null` | Accelerator for marking last card as audio card (default: `"CommandOrControl+Shift+A"`)                                                       |
 | `openRuntimeOptions`          | string \| `null` | Opens runtime options palette for live session-only toggles (default: `"CommandOrControl+Shift+O"`)                                           |
+| `openSessionHelp`             | string \| `null` | Opens the in-overlay session help modal (default: `"CommandOrControl+Shift+H"`)                                                               |
+| `openControllerSelect`        | string \| `null` | Opens the controller config/remap modal (default: `"Alt+C"`)                                                                                   |
+| `openControllerDebug`         | string \| `null` | Opens the controller debug modal (default: `"Alt+Shift+C"`)                                                                                    |
 | `openJimaku`                  | string \| `null` | Opens the Jimaku search modal (default: `"Ctrl+Shift+J"`)                                                                                     |
+| `toggleSubtitleSidebar`       | string \| `null` | Dispatches the subtitle sidebar toggle action (default: `"\\"`). `subtitleSidebar.toggleKey` remains the primary bare-key setting.            |
 
 **See `config.example.jsonc`** for the complete list of shortcut configuration options.
 
@@ -573,9 +581,10 @@ Important behavior:
 - Controller input is only active while keyboard-only mode is enabled.
 - Keyboard-only mode continues to work normally without a controller.
 - By default SubMiner uses the first connected controller.
-- `Alt+C` opens the controller config modal, where you can save the selected controller and remap actions inline.
+- `Alt+C` opens the controller config modal by default, and you can remap that shortcut through `shortcuts.openControllerSelect`.
 - Click `Learn`, then press the next fresh button, trigger, or stick direction you want to bind for that overlay action.
-- `Alt+Shift+C` opens a live debug modal showing raw axes/button values plus a ready-to-copy `buttonIndices` config block.
+- `Alt+Shift+C` opens the debug modal by default, and you can remap that shortcut through `shortcuts.openControllerDebug`.
+- The debug modal shows raw axes/button values plus a ready-to-copy `buttonIndices` config block.
 - `controller.buttonIndices` is a semantic reference/legacy mapping. Changing it does not rewrite the raw numeric descriptor values already stored under `controller.bindings`.
 - Turning keyboard-only mode off clears the keyboard-only token highlight state.
 - Closing the Yomitan popup clears the temporary native text-selection fill, but keeps controller token selection active.
@@ -694,7 +703,7 @@ These shortcuts are only active when the overlay window is visible and automatic
 
 ### Session Help Modal
 
-The session help modal is opened with `Y-H` by default (falls back to `Y-K` if needed) and shows the current session keybindings and color legend.
+The session help modal opens from the overlay with `Ctrl/Cmd+Shift+H` by default. The mpv plugin also exposes it through the `Y-H` chord (falling back to `Y-K` if needed). It shows the current session keybindings and color legend.
 
 You can filter the modal quickly with `/`:
 
diff --git a/docs-site/public/config.example.jsonc b/docs-site/public/config.example.jsonc
index efd0fd7d..2d9c1c67 100644
--- a/docs-site/public/config.example.jsonc
+++ b/docs-site/public/config.example.jsonc
@@ -173,7 +173,11 @@
     "toggleSecondarySub": "CommandOrControl+Shift+V", // Toggle secondary sub setting.
     "markAudioCard": "CommandOrControl+Shift+A", // Mark audio card setting.
     "openRuntimeOptions": "CommandOrControl+Shift+O", // Open runtime options setting.
-    "openJimaku": "Ctrl+Shift+J" // Open jimaku setting.
+    "openJimaku": "Ctrl+Shift+J", // Open jimaku setting.
+    "openSessionHelp": "CommandOrControl+Shift+H", // Open session help setting.
+    "openControllerSelect": "Alt+C", // Open controller select setting.
+    "openControllerDebug": "Alt+Shift+C", // Open controller debug setting.
+    "toggleSubtitleSidebar": "\\" // Toggle subtitle sidebar setting.
   }, // Overlay keyboard shortcuts. Set a shortcut to null to disable.
 
   // ==========================================
diff --git a/docs-site/shortcuts.md b/docs-site/shortcuts.md
index 2310f549..a79ee7a0 100644
--- a/docs-site/shortcuts.md
+++ b/docs-site/shortcuts.md
@@ -67,6 +67,7 @@ Mouse-hover playback behavior is configured separately from shortcuts: `subtitle
 | ------------------ | -------------------------------------------------------- | ------------------------------ |
 | `Ctrl/Cmd+Shift+V` | Cycle secondary subtitle mode (hidden → visible → hover) | `shortcuts.toggleSecondarySub` |
 | `Ctrl/Cmd+Shift+O` | Open runtime options palette                             | `shortcuts.openRuntimeOptions` |
+| `Ctrl/Cmd+Shift+H` | Open session help modal                                  | `shortcuts.openSessionHelp`    |
 | `Ctrl+Shift+J`     | Open Jimaku subtitle search modal                        | `shortcuts.openJimaku`         |
 | `Ctrl+Alt+C`       | Open the manual YouTube subtitle picker                  | `keybindings`                  |
 | `Ctrl+Alt+S`       | Open subtitle sync (subsync) modal                       | `shortcuts.triggerSubsync`     |
@@ -79,12 +80,12 @@ The subtitle sidebar toggle is overlay-local and only opens when SubMiner has a
 
 ## Controller Shortcuts
 
-These overlay-local shortcuts are fixed and open controller utilities for the Chrome Gamepad API integration.
+These overlay-local shortcuts open controller utilities for the Chrome Gamepad API integration.
 
-| Shortcut      | Action                         | Configurable |
-| ------------- | ------------------------------ | ------------ |
-| `Alt+C`       | Open controller config + remap modal | Fixed        |
-| `Alt+Shift+C` | Open controller debug modal          | Fixed        |
+| Shortcut      | Action                               | Configurable                     |
+| ------------- | ------------------------------------ | -------------------------------- |
+| `Alt+C`       | Open controller config + remap modal | `shortcuts.openControllerSelect` |
+| `Alt+Shift+C` | Open controller debug modal          | `shortcuts.openControllerDebug`  |
 
 Controller input only drives the overlay while keyboard-only mode is enabled. The controller mapping and tuning live under the top-level `controller` config block; keyboard-only mode still works normally without a controller.
 
@@ -101,6 +102,7 @@ When the mpv plugin is installed, all commands use a `y` chord prefix — press
 | `y-o` | Open Yomitan settings    |
 | `y-r` | Restart overlay          |
 | `y-c` | Check overlay status     |
+| `y-h` | Open session help        |
 
 When the overlay has focus, press `y` then `d` to toggle DevTools (debugging helper).
 
diff --git a/docs-site/usage.md b/docs-site/usage.md
index 96e4b583..0d446d4a 100644
--- a/docs-site/usage.md
+++ b/docs-site/usage.md
@@ -272,12 +272,12 @@ SubMiner supports gamepad/controller input for couch-friendly usage via the Chro
 
 1. Connect a controller before or after launching SubMiner.
 2. Enable keyboard-only mode — press `Y` on the controller (default binding) or use the overlay keybinding.
-3. Press `Alt+C` in the overlay to pick the controller you want to save and remap any action inline.
+3. Press `Alt+C` in the overlay by default to pick the controller you want to save and remap any action inline.
 4. Click `Learn` on the overlay action you want, then press the matching button, trigger, or stick direction on the controller.
 5. Use the left stick to navigate subtitle tokens and scroll the popup; use the right stick vertically for popup page jumps.
 6. Press `A` to look up the selected word, `X` to mine a card, `B` to close the popup.
 
-By default SubMiner uses the first connected controller. `Alt+C` opens the controller config modal, where you can save the preferred controller and remap bindings inline. `Alt+Shift+C` still opens the live debug modal with raw axes/button values for non-standard pads.
+By default SubMiner uses the first connected controller. `Alt+C` opens the controller config modal, where you can save the preferred controller and remap bindings inline, and `Alt+Shift+C` opens the live debug modal with raw axes/button values for non-standard pads. Both shortcuts can be changed through `shortcuts.openControllerSelect` and `shortcuts.openControllerDebug`.
 
 ### Default Button Mapping
 
@@ -321,6 +321,8 @@ See [Keyboard Shortcuts](/shortcuts) for the full reference, including mining sh
 
 Useful overlay-local default keybinding: `Ctrl+Alt+P` opens the playlist browser for the current video's parent directory and the live mpv queue so you can append, reorder, remove, or jump between episodes without leaving playback.
 
+`Ctrl/Cmd+Shift+H` opens the session help modal with the current overlay and mpv keybindings. If you use the mpv plugin, the same help view is also available through the `y-h` chord.
+
 Hovering over subtitle text pauses mpv by default; leaving resumes it. Yomitan popups also pause playback by default. Set `subtitleStyle.autoPauseVideoOnHover: false` or `subtitleStyle.autoPauseVideoOnYomitanPopup: false` to disable either behavior.
 
 ### Drag-and-Drop
diff --git a/plugin/subminer/session_bindings.lua b/plugin/subminer/session_bindings.lua
index aa4bbaab..de6fdbed 100644
--- a/plugin/subminer/session_bindings.lua
+++ b/plugin/subminer/session_bindings.lua
@@ -133,6 +133,8 @@ function M.create(ctx)
 			return { "--mine-sentence-count", tostring(payload and payload.count or 1) }
 		elseif action_id == "toggleSecondarySub" then
 			return { "--toggle-secondary-sub" }
+		elseif action_id == "toggleSubtitleSidebar" then
+			return { "--toggle-subtitle-sidebar" }
 		elseif action_id == "markAudioCard" then
 			return { "--mark-audio-card" }
 		elseif action_id == "openRuntimeOptions" then
@@ -141,6 +143,12 @@ function M.create(ctx)
 			return { "--open-jimaku" }
 		elseif action_id == "openYoutubePicker" then
 			return { "--open-youtube-picker" }
+		elseif action_id == "openSessionHelp" then
+			return { "--open-session-help" }
+		elseif action_id == "openControllerSelect" then
+			return { "--open-controller-select" }
+		elseif action_id == "openControllerDebug" then
+			return { "--open-controller-debug" }
 		elseif action_id == "openPlaylistBrowser" then
 			return { "--open-playlist-browser" }
 		elseif action_id == "replayCurrentSubtitle" then
diff --git a/plugin/subminer/ui.lua b/plugin/subminer/ui.lua
index f4ff0e4c..92cbabb5 100644
--- a/plugin/subminer/ui.lua
+++ b/plugin/subminer/ui.lua
@@ -90,6 +90,12 @@ function M.create(ctx)
 		mp.add_key_binding("y-c", "subminer-status", function()
 			process.check_status()
 		end)
+		mp.add_key_binding("y-h", "subminer-session-help", function()
+			if not ensure_binary_for_menu() then
+				return
+			end
+			process.run_control_command_async("open-session-help")
+		end)
 		if type(opts.aniskip_button_key) == "string" and opts.aniskip_button_key ~= "" then
 			mp.add_key_binding(opts.aniskip_button_key, "subminer-skip-intro", function()
 				aniskip.skip_intro_now()
diff --git a/src/cli/args.ts b/src/cli/args.ts
index 186da80f..b02c09b5 100644
--- a/src/cli/args.ts
+++ b/src/cli/args.ts
@@ -25,7 +25,11 @@ export interface CliArgs {
   triggerSubsync: boolean;
   markAudioCard: boolean;
   toggleStatsOverlay: boolean;
+  toggleSubtitleSidebar: boolean;
   openRuntimeOptions: boolean;
+  openSessionHelp: boolean;
+  openControllerSelect: boolean;
+  openControllerDebug: boolean;
   openJimaku: boolean;
   openYoutubePicker: boolean;
   openPlaylistBrowser: boolean;
@@ -115,7 +119,11 @@ export function parseArgs(argv: string[]): CliArgs {
     triggerSubsync: false,
     markAudioCard: false,
     toggleStatsOverlay: false,
+    toggleSubtitleSidebar: false,
     openRuntimeOptions: false,
+    openSessionHelp: false,
+    openControllerSelect: false,
+    openControllerDebug: false,
     openJimaku: false,
     openYoutubePicker: false,
     openPlaylistBrowser: false,
@@ -218,7 +226,11 @@ export function parseArgs(argv: string[]): CliArgs {
     else if (arg === '--trigger-subsync') args.triggerSubsync = true;
     else if (arg === '--mark-audio-card') args.markAudioCard = true;
     else if (arg === '--toggle-stats-overlay') args.toggleStatsOverlay = true;
+    else if (arg === '--toggle-subtitle-sidebar') args.toggleSubtitleSidebar = true;
     else if (arg === '--open-runtime-options') args.openRuntimeOptions = true;
+    else if (arg === '--open-session-help') args.openSessionHelp = true;
+    else if (arg === '--open-controller-select') args.openControllerSelect = true;
+    else if (arg === '--open-controller-debug') args.openControllerDebug = true;
     else if (arg === '--open-jimaku') args.openJimaku = true;
     else if (arg === '--open-youtube-picker') args.openYoutubePicker = true;
     else if (arg === '--open-playlist-browser') args.openPlaylistBrowser = true;
@@ -442,7 +454,11 @@ export function hasExplicitCommand(args: CliArgs): boolean {
     args.triggerSubsync ||
     args.markAudioCard ||
     args.toggleStatsOverlay ||
+    args.toggleSubtitleSidebar ||
     args.openRuntimeOptions ||
+    args.openSessionHelp ||
+    args.openControllerSelect ||
+    args.openControllerDebug ||
     args.openJimaku ||
     args.openYoutubePicker ||
     args.openPlaylistBrowser ||
@@ -505,7 +521,11 @@ export function isStandaloneTexthookerCommand(args: CliArgs): boolean {
     !args.triggerSubsync &&
     !args.markAudioCard &&
     !args.toggleStatsOverlay &&
+    !args.toggleSubtitleSidebar &&
     !args.openRuntimeOptions &&
+    !args.openSessionHelp &&
+    !args.openControllerSelect &&
+    !args.openControllerDebug &&
     !args.openJimaku &&
     !args.openYoutubePicker &&
     !args.openPlaylistBrowser &&
@@ -559,7 +579,11 @@ export function shouldStartApp(args: CliArgs): boolean {
     args.triggerSubsync ||
     args.markAudioCard ||
     args.toggleStatsOverlay ||
+    args.toggleSubtitleSidebar ||
     args.openRuntimeOptions ||
+    args.openSessionHelp ||
+    args.openControllerSelect ||
+    args.openControllerDebug ||
     args.openJimaku ||
     args.openYoutubePicker ||
     args.openPlaylistBrowser ||
@@ -608,7 +632,11 @@ export function shouldRunSettingsOnlyStartup(args: CliArgs): boolean {
     !args.triggerSubsync &&
     !args.markAudioCard &&
     !args.toggleStatsOverlay &&
+    !args.toggleSubtitleSidebar &&
     !args.openRuntimeOptions &&
+    !args.openSessionHelp &&
+    !args.openControllerSelect &&
+    !args.openControllerDebug &&
     !args.openJimaku &&
     !args.openYoutubePicker &&
     !args.openPlaylistBrowser &&
@@ -658,10 +686,14 @@ export function commandNeedsOverlayRuntime(args: CliArgs): boolean {
     args.mineSentenceMultiple ||
     args.updateLastCardFromClipboard ||
     args.toggleSecondarySub ||
+    args.toggleSubtitleSidebar ||
     args.triggerFieldGrouping ||
     args.triggerSubsync ||
     args.markAudioCard ||
     args.openRuntimeOptions ||
+    args.openSessionHelp ||
+    args.openControllerSelect ||
+    args.openControllerDebug ||
     args.openJimaku ||
     args.openYoutubePicker ||
     args.openPlaylistBrowser ||
diff --git a/src/cli/help.ts b/src/cli/help.ts
index 7b74700b..ad31ff7e 100644
--- a/src/cli/help.ts
+++ b/src/cli/help.ts
@@ -35,7 +35,11 @@ ${B}Mining${R}
   --trigger-field-grouping       Run Kiku field grouping
   --trigger-subsync              Run subtitle sync
   --toggle-secondary-sub         Cycle secondary subtitle mode
+  --toggle-subtitle-sidebar      Toggle subtitle sidebar panel
   --open-runtime-options         Open runtime options palette
+  --open-session-help            Open session help modal
+  --open-controller-select       Open controller select modal
+  --open-controller-debug        Open controller debug modal
 
 ${B}AniList${R}
   --anilist-setup                Open AniList authentication flow
diff --git a/src/config/definitions/defaults-core.ts b/src/config/definitions/defaults-core.ts
index 9574b67b..e57830bb 100644
--- a/src/config/definitions/defaults-core.ts
+++ b/src/config/definitions/defaults-core.ts
@@ -88,6 +88,10 @@ export const CORE_DEFAULT_CONFIG: Pick<
     markAudioCard: 'CommandOrControl+Shift+A',
     openRuntimeOptions: 'CommandOrControl+Shift+O',
     openJimaku: 'Ctrl+Shift+J',
+    openSessionHelp: 'CommandOrControl+Shift+H',
+    openControllerSelect: 'Alt+C',
+    openControllerDebug: 'Alt+Shift+C',
+    toggleSubtitleSidebar: '\\',
   },
   secondarySub: {
     secondarySubLanguages: [],
diff --git a/src/core/services/app-lifecycle.test.ts b/src/core/services/app-lifecycle.test.ts
index b86a92ef..545d12e9 100644
--- a/src/core/services/app-lifecycle.test.ts
+++ b/src/core/services/app-lifecycle.test.ts
@@ -29,7 +29,11 @@ function makeArgs(overrides: Partial<CliArgs> = {}): CliArgs {
     triggerSubsync: false,
     markAudioCard: false,
     toggleStatsOverlay: false,
+    toggleSubtitleSidebar: false,
     openRuntimeOptions: false,
+    openSessionHelp: false,
+    openControllerSelect: false,
+    openControllerDebug: false,
     openJimaku: false,
     openYoutubePicker: false,
     openPlaylistBrowser: false,
diff --git a/src/core/services/cli-command.test.ts b/src/core/services/cli-command.test.ts
index 465ffbca..2bfed141 100644
--- a/src/core/services/cli-command.test.ts
+++ b/src/core/services/cli-command.test.ts
@@ -30,8 +30,12 @@ function makeArgs(overrides: Partial<CliArgs> = {}): CliArgs {
     triggerSubsync: false,
     markAudioCard: false,
     toggleStatsOverlay: false,
+    toggleSubtitleSidebar: false,
     refreshKnownWords: false,
     openRuntimeOptions: false,
+    openSessionHelp: false,
+    openControllerSelect: false,
+    openControllerDebug: false,
     openJimaku: false,
     openYoutubePicker: false,
     openPlaylistBrowser: false,
diff --git a/src/core/services/cli-command.ts b/src/core/services/cli-command.ts
index b4a8d567..a263052a 100644
--- a/src/core/services/cli-command.ts
+++ b/src/core/services/cli-command.ts
@@ -402,8 +402,32 @@ export function handleCliCommand(
       'toggleStatsOverlay',
       'Stats toggle failed',
     );
+  } else if (args.toggleSubtitleSidebar) {
+    dispatchCliSessionAction(
+      { actionId: 'toggleSubtitleSidebar' },
+      'toggleSubtitleSidebar',
+      'Subtitle sidebar toggle failed',
+    );
   } else if (args.openRuntimeOptions) {
     deps.openRuntimeOptionsPalette();
+  } else if (args.openSessionHelp) {
+    dispatchCliSessionAction(
+      { actionId: 'openSessionHelp' },
+      'openSessionHelp',
+      'Open session help failed',
+    );
+  } else if (args.openControllerSelect) {
+    dispatchCliSessionAction(
+      { actionId: 'openControllerSelect' },
+      'openControllerSelect',
+      'Open controller select failed',
+    );
+  } else if (args.openControllerDebug) {
+    dispatchCliSessionAction(
+      { actionId: 'openControllerDebug' },
+      'openControllerDebug',
+      'Open controller debug failed',
+    );
   } else if (args.openJimaku) {
     dispatchCliSessionAction({ actionId: 'openJimaku' }, 'openJimaku', 'Open jimaku failed');
   } else if (args.openYoutubePicker) {
diff --git a/src/core/services/overlay-shortcut-handler.test.ts b/src/core/services/overlay-shortcut-handler.test.ts
index 824365ba..f2d80b78 100644
--- a/src/core/services/overlay-shortcut-handler.test.ts
+++ b/src/core/services/overlay-shortcut-handler.test.ts
@@ -27,6 +27,10 @@ function makeShortcuts(overrides: Partial<ConfiguredShortcuts> = {}): Configured
     markAudioCard: null,
     openRuntimeOptions: null,
     openJimaku: null,
+    openSessionHelp: null,
+    openControllerSelect: null,
+    openControllerDebug: null,
+    toggleSubtitleSidebar: null,
     ...overrides,
   };
 }
diff --git a/src/core/services/overlay-shortcut.test.ts b/src/core/services/overlay-shortcut.test.ts
index 565fb1c7..72d30e7e 100644
--- a/src/core/services/overlay-shortcut.test.ts
+++ b/src/core/services/overlay-shortcut.test.ts
@@ -22,6 +22,10 @@ function createShortcuts(overrides: Partial<ConfiguredShortcuts> = {}): Configur
     markAudioCard: null,
     openRuntimeOptions: null,
     openJimaku: null,
+    openSessionHelp: null,
+    openControllerSelect: null,
+    openControllerDebug: null,
+    toggleSubtitleSidebar: null,
     ...overrides,
   };
 }
diff --git a/src/core/services/session-actions.ts b/src/core/services/session-actions.ts
index 02699743..770b41fe 100644
--- a/src/core/services/session-actions.ts
+++ b/src/core/services/session-actions.ts
@@ -13,8 +13,12 @@ export interface SessionActionExecutorDeps {
   mineSentenceCard: () => Promise<void>;
   mineSentenceCount: (count: number) => void;
   toggleSecondarySub: () => void;
+  toggleSubtitleSidebar: () => void;
   markLastCardAsAudioCard: () => Promise<void>;
   openRuntimeOptionsPalette: () => void;
+  openSessionHelp: () => void;
+  openControllerSelect: () => void;
+  openControllerDebug: () => void;
   openJimaku: () => void;
   openYoutubeTrackPicker: () => void | Promise<void>;
   openPlaylistBrowser: () => boolean | void | Promise<boolean | void>;
@@ -65,12 +69,24 @@ export async function dispatchSessionAction(
     case 'toggleSecondarySub':
       deps.toggleSecondarySub();
       return;
+    case 'toggleSubtitleSidebar':
+      deps.toggleSubtitleSidebar();
+      return;
     case 'markAudioCard':
       await deps.markLastCardAsAudioCard();
       return;
     case 'openRuntimeOptions':
       deps.openRuntimeOptionsPalette();
       return;
+    case 'openSessionHelp':
+      deps.openSessionHelp();
+      return;
+    case 'openControllerSelect':
+      deps.openControllerSelect();
+      return;
+    case 'openControllerDebug':
+      deps.openControllerDebug();
+      return;
     case 'openJimaku':
       deps.openJimaku();
       return;
diff --git a/src/core/services/session-bindings.test.ts b/src/core/services/session-bindings.test.ts
index d91cff0a..f29f3a2a 100644
--- a/src/core/services/session-bindings.test.ts
+++ b/src/core/services/session-bindings.test.ts
@@ -20,6 +20,10 @@ function createShortcuts(overrides: Partial<ConfiguredShortcuts> = {}): Configur
     markAudioCard: null,
     openRuntimeOptions: null,
     openJimaku: null,
+    openSessionHelp: null,
+    openControllerSelect: null,
+    openControllerDebug: null,
+    toggleSubtitleSidebar: null,
     ...overrides,
   };
 }
@@ -33,6 +37,7 @@ test('compileSessionBindings merges shortcuts and keybindings into one canonical
     shortcuts: createShortcuts({
       toggleVisibleOverlayGlobal: 'Alt+Shift+O',
       openJimaku: 'Ctrl+Shift+J',
+      openControllerSelect: 'Alt+C',
     }),
     keybindings: [
       createKeybinding('KeyF', ['cycle', 'fullscreen']),
@@ -68,6 +73,13 @@ test('compileSessionBindings merges shortcuts and keybindings into one canonical
         modifiers: ['ctrl', 'shift'],
         target: 'openYoutubePicker',
       },
+      {
+        actionType: 'session-action',
+        sourcePath: 'shortcuts.openControllerSelect',
+        code: 'KeyC',
+        modifiers: ['alt'],
+        target: 'openControllerSelect',
+      },
       {
         actionType: 'session-action',
         sourcePath: 'shortcuts.openJimaku',
diff --git a/src/core/services/session-bindings.ts b/src/core/services/session-bindings.ts
index bec9e16a..3d73eaad 100644
--- a/src/core/services/session-bindings.ts
+++ b/src/core/services/session-bindings.ts
@@ -45,6 +45,10 @@ const SESSION_SHORTCUT_ACTIONS: Array<{
   { key: 'markAudioCard', actionId: 'markAudioCard' },
   { key: 'openRuntimeOptions', actionId: 'openRuntimeOptions' },
   { key: 'openJimaku', actionId: 'openJimaku' },
+  { key: 'openSessionHelp', actionId: 'openSessionHelp' },
+  { key: 'openControllerSelect', actionId: 'openControllerSelect' },
+  { key: 'openControllerDebug', actionId: 'openControllerDebug' },
+  { key: 'toggleSubtitleSidebar', actionId: 'toggleSubtitleSidebar' },
 ];
 
 function normalizeModifiers(modifiers: SessionKeyModifier[]): SessionKeyModifier[] {
diff --git a/src/core/services/startup-bootstrap.test.ts b/src/core/services/startup-bootstrap.test.ts
index 277027f6..188b6c94 100644
--- a/src/core/services/startup-bootstrap.test.ts
+++ b/src/core/services/startup-bootstrap.test.ts
@@ -29,7 +29,11 @@ function makeArgs(overrides: Partial<CliArgs> = {}): CliArgs {
     triggerSubsync: false,
     markAudioCard: false,
     toggleStatsOverlay: false,
+    toggleSubtitleSidebar: false,
     openRuntimeOptions: false,
+    openSessionHelp: false,
+    openControllerSelect: false,
+    openControllerDebug: false,
     openJimaku: false,
     openYoutubePicker: false,
     openPlaylistBrowser: false,
diff --git a/src/core/utils/shortcut-config.ts b/src/core/utils/shortcut-config.ts
index 991c1954..25807dc6 100644
--- a/src/core/utils/shortcut-config.ts
+++ b/src/core/utils/shortcut-config.ts
@@ -14,6 +14,10 @@ export interface ConfiguredShortcuts {
   markAudioCard: string | null | undefined;
   openRuntimeOptions: string | null | undefined;
   openJimaku: string | null | undefined;
+  openSessionHelp: string | null | undefined;
+  openControllerSelect: string | null | undefined;
+  openControllerDebug: string | null | undefined;
+  toggleSubtitleSidebar: string | null | undefined;
 }
 
 export function resolveConfiguredShortcuts(
@@ -78,5 +82,17 @@ export function resolveConfiguredShortcuts(
     openJimaku: normalizeShortcut(
       config.shortcuts?.openJimaku ?? defaultConfig.shortcuts?.openJimaku,
     ),
+    openSessionHelp: normalizeShortcut(
+      config.shortcuts?.openSessionHelp ?? defaultConfig.shortcuts?.openSessionHelp,
+    ),
+    openControllerSelect: normalizeShortcut(
+      config.shortcuts?.openControllerSelect ?? defaultConfig.shortcuts?.openControllerSelect,
+    ),
+    openControllerDebug: normalizeShortcut(
+      config.shortcuts?.openControllerDebug ?? defaultConfig.shortcuts?.openControllerDebug,
+    ),
+    toggleSubtitleSidebar: normalizeShortcut(
+      config.shortcuts?.toggleSubtitleSidebar ?? defaultConfig.shortcuts?.toggleSubtitleSidebar,
+    ),
   };
 }
diff --git a/src/main.ts b/src/main.ts
index 96abf216..d0cabed8 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -453,6 +453,10 @@ import { createOverlayModalRuntimeService } from './main/overlay-runtime';
 import { createOverlayModalInputState } from './main/runtime/overlay-modal-input-state';
 import { openYoutubeTrackPicker } from './main/runtime/youtube-picker-open';
 import { openRuntimeOptionsModal as openRuntimeOptionsModalRuntime } from './main/runtime/runtime-options-open';
+import { openJimakuModal as openJimakuModalRuntime } from './main/runtime/jimaku-open';
+import { openSessionHelpModal as openSessionHelpModalRuntime } from './main/runtime/session-help-open';
+import { openControllerSelectModal as openControllerSelectModalRuntime } from './main/runtime/controller-select-open';
+import { openControllerDebugModal as openControllerDebugModalRuntime } from './main/runtime/controller-debug-open';
 import { createPlaylistBrowserIpcRuntime } from './main/runtime/playlist-browser-ipc';
 import { writeSessionBindingsArtifact } from './main/runtime/session-bindings-artifact';
 import { openOverlayHostedModal } from './main/runtime/overlay-hosted-modal-open';
@@ -2211,8 +2215,21 @@ function setOverlayDebugVisualizationEnabled(enabled: boolean): void {
   overlayVisibilityComposer.setOverlayDebugVisualizationEnabled(enabled);
 }
 
-function openRuntimeOptionsPalette(): void {
-  void openRuntimeOptionsModalRuntime({
+function createOverlayHostedModalOpenDeps(): {
+  ensureOverlayStartupPrereqs: () => void;
+  ensureOverlayWindowsReadyForVisibilityActions: () => void;
+  sendToActiveOverlayWindow: (
+    channel: string,
+    payload?: unknown,
+    runtimeOptions?: {
+      restoreOnModalClose?: OverlayHostedModal;
+      preferModalWindow?: boolean;
+    },
+  ) => boolean;
+  waitForModalOpen: (modal: OverlayHostedModal, timeoutMs: number) => Promise<boolean>;
+  logWarn: (message: string) => void;
+} {
+  return {
     ensureOverlayStartupPrereqs: () => ensureOverlayStartupPrereqs(),
     ensureOverlayWindowsReadyForVisibilityActions: () =>
       ensureOverlayWindowsReadyForVisibilityActions(),
@@ -2220,33 +2237,62 @@ function openRuntimeOptionsPalette(): void {
       sendToActiveOverlayWindow(channel, payload, runtimeOptions),
     waitForModalOpen: (modal, timeoutMs) => overlayModalRuntime.waitForModalOpen(modal, timeoutMs),
     logWarn: (message) => logger.warn(message),
-  }).then((opened) => {
+  };
+}
+
+function openOverlayHostedModalWithOsd(
+  openModal: (deps: ReturnType<typeof createOverlayHostedModalOpenDeps>) => Promise<boolean>,
+  unavailableMessage: string,
+  failureLogMessage: string,
+): void {
+  void openModal(createOverlayHostedModalOpenDeps()).then((opened) => {
     if (!opened) {
-      showMpvOsd('Runtime options overlay unavailable.');
+      showMpvOsd(unavailableMessage);
     }
   }).catch((error) => {
-    logger.error('Failed to open runtime options overlay.', error);
-    showMpvOsd('Runtime options overlay unavailable.');
+    logger.error(failureLogMessage, error);
+    showMpvOsd(unavailableMessage);
   });
 }
 
-function openJimakuOverlay(): void {
-  const opened = openOverlayHostedModal(
-    {
-      ensureOverlayStartupPrereqs: () => ensureOverlayStartupPrereqs(),
-      ensureOverlayWindowsReadyForVisibilityActions: () =>
-        ensureOverlayWindowsReadyForVisibilityActions(),
-      sendToActiveOverlayWindow: (channel, payload, runtimeOptions) =>
-        sendToActiveOverlayWindow(channel, payload, runtimeOptions),
-    },
-    {
-      channel: IPC_CHANNELS.event.jimakuOpen,
-      modal: 'jimaku',
-    },
+function openRuntimeOptionsPalette(): void {
+  openOverlayHostedModalWithOsd(
+    openRuntimeOptionsModalRuntime,
+    'Runtime options overlay unavailable.',
+    'Failed to open runtime options overlay.',
+  );
+}
+
+function openJimakuOverlay(): void {
+  openOverlayHostedModalWithOsd(
+    openJimakuModalRuntime,
+    'Jimaku overlay unavailable.',
+    'Failed to open Jimaku overlay.',
+  );
+}
+
+function openSessionHelpOverlay(): void {
+  openOverlayHostedModalWithOsd(
+    openSessionHelpModalRuntime,
+    'Session help overlay unavailable.',
+    'Failed to open session help overlay.',
+  );
+}
+
+function openControllerSelectOverlay(): void {
+  openOverlayHostedModalWithOsd(
+    openControllerSelectModalRuntime,
+    'Controller select overlay unavailable.',
+    'Failed to open controller select overlay.',
+  );
+}
+
+function openControllerDebugOverlay(): void {
+  openOverlayHostedModalWithOsd(
+    openControllerDebugModalRuntime,
+    'Controller debug overlay unavailable.',
+    'Failed to open controller debug overlay.',
   );
-  if (!opened) {
-    showMpvOsd('Jimaku overlay unavailable.');
-  }
 }
 
 function openPlaylistBrowser(): void {
@@ -2254,16 +2300,11 @@ function openPlaylistBrowser(): void {
     showMpvOsd('Playlist browser requires active playback.');
     return;
   }
-  const opened = openPlaylistBrowserRuntime({
-    ensureOverlayStartupPrereqs: () => ensureOverlayStartupPrereqs(),
-    ensureOverlayWindowsReadyForVisibilityActions: () =>
-      ensureOverlayWindowsReadyForVisibilityActions(),
-    sendToActiveOverlayWindow: (channel, payload, runtimeOptions) =>
-      sendToActiveOverlayWindow(channel, payload, runtimeOptions),
-  });
-  if (!opened) {
-    showMpvOsd('Playlist browser overlay unavailable.');
-  }
+  openOverlayHostedModalWithOsd(
+    openPlaylistBrowserRuntime,
+    'Playlist browser overlay unavailable.',
+    'Failed to open playlist browser overlay.',
+  );
 }
 
 function getResolvedConfig() {
@@ -4278,6 +4319,10 @@ function handleCycleSecondarySubMode(): void {
   cycleSecondarySubMode();
 }
 
+function toggleSubtitleSidebar(): void {
+  broadcastToOverlayWindows(IPC_CHANNELS.event.subtitleSidebarToggle);
+}
+
 async function triggerSubsyncFromConfig(): Promise<void> {
   await subsyncRuntime.triggerFromConfig();
 }
@@ -4562,9 +4607,13 @@ async function dispatchSessionAction(request: SessionActionDispatchRequest): Pro
     mineSentenceCard: () => mineSentenceCard(),
     mineSentenceCount: (count) => handleMineSentenceDigit(count),
     toggleSecondarySub: () => handleCycleSecondarySubMode(),
+    toggleSubtitleSidebar: () => toggleSubtitleSidebar(),
     markLastCardAsAudioCard: () => markLastCardAsAudioCard(),
     openRuntimeOptionsPalette: () => openRuntimeOptionsPalette(),
     openJimaku: () => openJimakuOverlay(),
+    openSessionHelp: () => openSessionHelpOverlay(),
+    openControllerSelect: () => openControllerSelectOverlay(),
+    openControllerDebug: () => openControllerDebugOverlay(),
     openYoutubeTrackPicker: () => openYoutubeTrackPickerFromPlayback(),
     openPlaylistBrowser: () => openPlaylistBrowser(),
     replayCurrentSubtitle: () => replayCurrentSubtitleRuntime(appState.mpvClient),
diff --git a/src/main/boot/services.test.ts b/src/main/boot/services.test.ts
index c469c8b4..f318dc0e 100644
--- a/src/main/boot/services.test.ts
+++ b/src/main/boot/services.test.ts
@@ -23,7 +23,7 @@ test('createMainBootServices builds boot-phase service bundle', () => {
     { kind: string },
     { scope: string; warn: () => void; info: () => void; error: () => void },
     { registry: boolean },
-    { getModalWindow: () => null },
+    { getMainWindow: () => null; getModalWindow: () => null },
     {
       inputState: boolean;
       getModalInputExclusive: () => boolean;
@@ -82,6 +82,7 @@ test('createMainBootServices builds boot-phase service bundle', () => {
       }) as const,
     createMainRuntimeRegistry: () => ({ registry: true }),
     createOverlayManager: () => ({
+      getMainWindow: () => null,
       getModalWindow: () => null,
     }),
     createOverlayModalInputState: () => ({
diff --git a/src/main/boot/services.ts b/src/main/boot/services.ts
index 51c4f74f..f4f46582 100644
--- a/src/main/boot/services.ts
+++ b/src/main/boot/services.ts
@@ -74,6 +74,7 @@ export interface MainBootServicesParams<
     getModalWindow: () => BrowserWindow | null;
     syncOverlayShortcutsForModal: (isActive: boolean) => void;
     syncOverlayVisibilityForModal: () => void;
+    restoreMainWindowFocus?: () => void;
   }) => TOverlayModalInputState;
   createOverlayContentMeasurementStore: (params: {
     logger: TLogger;
@@ -131,7 +132,7 @@ export function createMainBootServices<
   TSubtitleWebSocket,
   TLogger,
   TRuntimeRegistry,
-  TOverlayManager extends { getModalWindow: () => BrowserWindow | null },
+  TOverlayManager extends { getMainWindow: () => BrowserWindow | null; getModalWindow: () => BrowserWindow | null },
   TOverlayModalInputState extends OverlayModalInputStateShape,
   TOverlayContentMeasurementStore,
   TOverlayModalRuntime,
@@ -212,6 +213,26 @@ export function createMainBootServices<
     syncOverlayVisibilityForModal: () => {
       params.getSyncOverlayVisibilityForModal()();
     },
+    restoreMainWindowFocus: () => {
+      const mainWindow = overlayManager.getMainWindow();
+      if (!mainWindow || mainWindow.isDestroyed() || !mainWindow.isVisible()) return;
+      try {
+        const electron = require('electron') as {
+          app?: { focus?: (options?: { steal?: boolean }) => void };
+        };
+        electron.app?.focus?.({ steal: true });
+      } catch {
+        // Ignore in non-Electron environments.
+      }
+      const maybeFocusable = mainWindow as typeof mainWindow & {
+        setFocusable?: (focusable: boolean) => void;
+      };
+      maybeFocusable.setFocusable?.(true);
+      mainWindow.focus();
+      if (!mainWindow.webContents.isFocused()) {
+        mainWindow.webContents.focus();
+      }
+    },
   });
   const overlayContentMeasurementStore = params.createOverlayContentMeasurementStore({
     logger,
diff --git a/src/main/overlay-runtime.test.ts b/src/main/overlay-runtime.test.ts
index 3f2e17dd..cd19356c 100644
--- a/src/main/overlay-runtime.test.ts
+++ b/src/main/overlay-runtime.test.ts
@@ -31,6 +31,7 @@ function createMockWindow(): MockWindow & {
   getHideCount: () => number;
   show: () => void;
   hide: () => void;
+  destroy: () => void;
   focus: () => void;
   once: (event: 'ready-to-show', cb: () => void) => void;
   webContents: {
@@ -81,6 +82,10 @@ function createMockWindow(): MockWindow & {
       state.visible = false;
       state.hideCount += 1;
     },
+    destroy: () => {
+      state.destroyed = true;
+      state.visible = false;
+    },
     focus: () => {
       state.focused = true;
     },
@@ -302,10 +307,10 @@ test('handleOverlayModalClosed hides modal window only after all pending modals
   );
 
   runtime.handleOverlayModalClosed('runtime-options');
-  assert.equal(window.getHideCount(), 0);
+  assert.equal(window.isDestroyed(), false);
 
   runtime.handleOverlayModalClosed('subsync');
-  assert.equal(window.getHideCount(), 1);
+  assert.equal(window.isDestroyed(), true);
 });
 
 test('sendToActiveOverlayWindow prefers visible main overlay window for modal open', () => {
@@ -519,7 +524,7 @@ test('handleOverlayModalClosed is a no-op when no modal window can be targeted',
   assert.deepEqual(state, []);
 });
 
-test('handleOverlayModalClosed hides modal window for single kiku modal', () => {
+test('handleOverlayModalClosed destroys modal window for single kiku modal', () => {
   const window = createMockWindow();
   const runtime = createOverlayModalRuntimeService({
     getMainWindow: () => null,
@@ -538,11 +543,11 @@ test('handleOverlayModalClosed hides modal window for single kiku modal', () =>
   );
   runtime.handleOverlayModalClosed('kiku');
 
-  assert.equal(window.getHideCount(), 1);
+  assert.equal(window.isDestroyed(), true);
   assert.equal(runtime.getRestoreVisibleOverlayOnModalClose().size, 0);
 });
 
-test('modal fallback reveal keeps mouse events ignored until modal confirms open', async () => {
+test('modal fallback reveal skips showing window when content is not ready', async () => {
   const window = createMockWindow();
   const runtime = createOverlayModalRuntimeService({
     getMainWindow: () => null,
@@ -563,16 +568,15 @@ test('modal fallback reveal keeps mouse events ignored until modal confirms open
   });
 
   assert.equal(sent, true);
-  assert.equal(window.ignoreMouseEvents, false);
 
   await new Promise<void>((resolve) => {
     setTimeout(resolve, 260);
   });
 
-  assert.equal(window.getShowCount(), 1);
-  assert.equal(window.ignoreMouseEvents, false);
+  assert.equal(window.getShowCount(), 0);
 
   runtime.notifyOverlayModalOpened('jimaku');
+  assert.equal(window.getShowCount(), 1);
   assert.equal(window.ignoreMouseEvents, false);
 });
 
@@ -606,12 +610,19 @@ test('sendToActiveOverlayWindow waits for modal ready-to-show before delivering
   assert.deepEqual(window.sent, [['runtime-options:open']]);
 });
 
-test('warm modal window reopen becomes interactive immediately on the second open', () => {
-  const window = createMockWindow();
+test('modal reopen creates a fresh window after close destroys the previous one', () => {
+  const firstWindow = createMockWindow();
+  const secondWindow = createMockWindow();
+  let currentModal: ReturnType<typeof createMockWindow> | null = firstWindow;
+
   const runtime = createOverlayModalRuntimeService({
     getMainWindow: () => null,
-    getModalWindow: () => window as never,
-    createModalWindow: () => window as never,
+    getModalWindow: () =>
+      currentModal && !currentModal.isDestroyed() ? (currentModal as never) : null,
+    createModalWindow: () => {
+      currentModal = secondWindow;
+      return secondWindow as never;
+    },
     getModalGeometry: () => ({ x: 0, y: 0, width: 400, height: 300 }),
     setModalWindowBounds: () => {},
   });
@@ -622,19 +633,84 @@ test('warm modal window reopen becomes interactive immediately on the second ope
   runtime.notifyOverlayModalOpened('runtime-options');
   runtime.handleOverlayModalClosed('runtime-options');
 
-  window.ignoreMouseEvents = true;
-  window.focused = false;
-  window.webContentsFocused = false;
+  assert.equal(firstWindow.isDestroyed(), true);
+
+  const sent = runtime.sendToActiveOverlayWindow('runtime-options:open', undefined, {
+    restoreOnModalClose: 'runtime-options',
+  });
+
+  assert.equal(sent, true);
+  assert.equal(currentModal, secondWindow);
+  assert.equal(secondWindow.getShowCount(), 0);
+});
+
+test('modal reopen after close-destroy notifies state change on fresh window lifecycle', () => {
+  const firstWindow = createMockWindow();
+  const secondWindow = createMockWindow();
+  let currentModal: ReturnType<typeof createMockWindow> | null = firstWindow;
+  const state: boolean[] = [];
+
+  const runtime = createOverlayModalRuntimeService(
+    {
+      getMainWindow: () => null,
+      getModalWindow: () =>
+        currentModal && !currentModal.isDestroyed() ? (currentModal as never) : null,
+      createModalWindow: () => {
+        currentModal = secondWindow;
+        return secondWindow as never;
+      },
+      getModalGeometry: () => ({ x: 0, y: 0, width: 400, height: 300 }),
+      setModalWindowBounds: () => {},
+    },
+    {
+      onModalStateChange: (active: boolean): void => {
+        state.push(active);
+      },
+    },
+  );
 
   runtime.sendToActiveOverlayWindow('runtime-options:open', undefined, {
     restoreOnModalClose: 'runtime-options',
   });
+  runtime.notifyOverlayModalOpened('runtime-options');
+  runtime.handleOverlayModalClosed('runtime-options');
 
-  assert.equal(window.isVisible(), true);
+  assert.deepEqual(state, [true, false]);
+  assert.equal(firstWindow.isDestroyed(), true);
+
+  runtime.sendToActiveOverlayWindow('runtime-options:open', undefined, {
+    restoreOnModalClose: 'runtime-options',
+  });
+  runtime.notifyOverlayModalOpened('runtime-options');
+
+  assert.deepEqual(state, [true, false, true]);
+  assert.equal(currentModal, secondWindow);
+});
+
+test('visible stale modal window is made interactive again before reopening', () => {
+  const window = createMockWindow();
+  window.visible = true;
+  window.focused = true;
+  window.webContentsFocused = false;
+  window.ignoreMouseEvents = true;
+
+  const runtime = createOverlayModalRuntimeService({
+    getMainWindow: () => null,
+    getModalWindow: () => window as never,
+    createModalWindow: () => window as never,
+    getModalGeometry: () => ({ x: 0, y: 0, width: 400, height: 300 }),
+    setModalWindowBounds: () => {},
+  });
+
+  const sent = runtime.sendToActiveOverlayWindow('runtime-options:open', undefined, {
+    restoreOnModalClose: 'runtime-options',
+  });
+
+  assert.equal(sent, true);
   assert.equal(window.ignoreMouseEvents, false);
   assert.equal(window.isFocused(), true);
   assert.equal(window.webContentsFocused, true);
-  assert.equal(window.getShowCount(), 2);
+  assert.deepEqual(window.sent, [['runtime-options:open']]);
 });
 
 test('waitForModalOpen resolves true after modal acknowledgement', async () => {
diff --git a/src/main/overlay-runtime.ts b/src/main/overlay-runtime.ts
index a14c4adb..0f8312ef 100644
--- a/src/main/overlay-runtime.ts
+++ b/src/main/overlay-runtime.ts
@@ -5,6 +5,26 @@ import { OVERLAY_WINDOW_CONTENT_READY_FLAG } from '../core/services/overlay-wind
 
 const MODAL_REVEAL_FALLBACK_DELAY_MS = 250;
 
+function requestOverlayApplicationFocus(): void {
+  try {
+    const electron = require('electron') as {
+      app?: {
+        focus?: (options?: { steal?: boolean }) => void;
+      };
+    };
+    electron.app?.focus?.({ steal: true });
+  } catch {
+    // Ignore focus-steal failures in non-Electron test environments.
+  }
+}
+
+function setWindowFocusable(window: BrowserWindow): void {
+  const maybeFocusableWindow = window as BrowserWindow & {
+    setFocusable?: (focusable: boolean) => void;
+  };
+  maybeFocusableWindow.setFocusable?.(true);
+}
+
 export interface OverlayWindowResolver {
   getMainWindow: () => BrowserWindow | null;
   getModalWindow: () => BrowserWindow | null;
@@ -142,6 +162,8 @@ export function createOverlayModalRuntimeService(
       passThroughMouseEvents: boolean;
     } = { passThroughMouseEvents: false },
   ): void => {
+    setWindowFocusable(window);
+    requestOverlayApplicationFocus();
     if (!window.isVisible()) {
       window.show();
     }
@@ -158,15 +180,14 @@ export function createOverlayModalRuntimeService(
   };
 
   const ensureModalWindowInteractive = (window: BrowserWindow): void => {
+    setWindowFocusable(window);
+    requestOverlayApplicationFocus();
+    window.setIgnoreMouseEvents(false);
+    elevateModalWindow(window);
+
     if (window.isVisible()) {
-      window.setIgnoreMouseEvents(false);
-      if (!window.isFocused()) {
-        window.focus();
-      }
-      if (!window.webContents.isFocused()) {
-        window.webContents.focus();
-      }
-      elevateModalWindow(window);
+      window.focus();
+      window.webContents.focus();
       return;
     }
 
@@ -251,6 +272,9 @@ export function createOverlayModalRuntimeService(
       if (!targetWindow || targetWindow.isDestroyed() || targetWindow.isVisible()) {
         return;
       }
+      if (!isWindowReadyForIpc(targetWindow)) {
+        return;
+      }
       showModalWindow(targetWindow, { passThroughMouseEvents: false });
     }, MODAL_REVEAL_FALLBACK_DELAY_MS);
   };
@@ -306,6 +330,9 @@ export function createOverlayModalRuntimeService(
       }
 
       sendOrQueueForWindow(modalWindow, (window) => {
+        if (window.isVisible()) {
+          ensureModalWindowInteractive(window);
+        }
         if (payload === undefined) {
           window.webContents.send(channel);
         } else {
@@ -346,9 +373,9 @@ export function createOverlayModalRuntimeService(
     if (restoreVisibleOverlayOnModalClose.size === 0) {
       clearPendingModalWindowReveal();
       if (modalWindow && !modalWindow.isDestroyed()) {
-        modalWindow.hide();
+        modalWindow.destroy();
       }
-      modalWindowPrimedForImmediateShow = true;
+      modalWindowPrimedForImmediateShow = false;
       mainWindowMousePassthroughForcedByModal = false;
       mainWindowHiddenByModal = false;
       notifyModalStateChange(false);
@@ -376,14 +403,7 @@ export function createOverlayModalRuntimeService(
     }
 
     if (targetWindow.isVisible()) {
-      targetWindow.setIgnoreMouseEvents(false);
-      elevateModalWindow(targetWindow);
-      if (!targetWindow.isFocused()) {
-        targetWindow.focus();
-      }
-      if (!targetWindow.webContents.isFocused()) {
-        targetWindow.webContents.focus();
-      }
+      ensureModalWindowInteractive(targetWindow);
       return;
     }
 
diff --git a/src/main/runtime/controller-debug-open.ts b/src/main/runtime/controller-debug-open.ts
new file mode 100644
index 00000000..622d7143
--- /dev/null
+++ b/src/main/runtime/controller-debug-open.ts
@@ -0,0 +1,48 @@
+import type { OverlayHostedModal } from '../../shared/ipc/contracts';
+import { IPC_CHANNELS } from '../../shared/ipc/contracts';
+import { openOverlayHostedModal, retryOverlayModalOpen } from './overlay-hosted-modal-open';
+
+const CONTROLLER_DEBUG_MODAL: OverlayHostedModal = 'controller-debug';
+const CONTROLLER_DEBUG_OPEN_TIMEOUT_MS = 1500;
+
+export async function openControllerDebugModal(deps: {
+  ensureOverlayStartupPrereqs: () => void;
+  ensureOverlayWindowsReadyForVisibilityActions: () => void;
+  sendToActiveOverlayWindow: (
+    channel: string,
+    payload?: unknown,
+    runtimeOptions?: {
+      restoreOnModalClose?: OverlayHostedModal;
+      preferModalWindow?: boolean;
+    },
+  ) => boolean;
+  waitForModalOpen: (modal: OverlayHostedModal, timeoutMs: number) => Promise<boolean>;
+  logWarn: (message: string) => void;
+}): Promise<boolean> {
+  return await retryOverlayModalOpen(
+    {
+      waitForModalOpen: deps.waitForModalOpen,
+      logWarn: deps.logWarn,
+    },
+    {
+      modal: CONTROLLER_DEBUG_MODAL,
+      timeoutMs: CONTROLLER_DEBUG_OPEN_TIMEOUT_MS,
+      retryWarning:
+        'Controller debug modal did not acknowledge modal open on first attempt; retrying dedicated modal window.',
+      sendOpen: () =>
+        openOverlayHostedModal(
+          {
+            ensureOverlayStartupPrereqs: deps.ensureOverlayStartupPrereqs,
+            ensureOverlayWindowsReadyForVisibilityActions:
+              deps.ensureOverlayWindowsReadyForVisibilityActions,
+            sendToActiveOverlayWindow: deps.sendToActiveOverlayWindow,
+          },
+          {
+            channel: IPC_CHANNELS.event.controllerDebugOpen,
+            modal: CONTROLLER_DEBUG_MODAL,
+            preferModalWindow: true,
+          },
+        ),
+    },
+  );
+}
diff --git a/src/main/runtime/controller-select-open.ts b/src/main/runtime/controller-select-open.ts
new file mode 100644
index 00000000..7af280a0
--- /dev/null
+++ b/src/main/runtime/controller-select-open.ts
@@ -0,0 +1,48 @@
+import type { OverlayHostedModal } from '../../shared/ipc/contracts';
+import { IPC_CHANNELS } from '../../shared/ipc/contracts';
+import { openOverlayHostedModal, retryOverlayModalOpen } from './overlay-hosted-modal-open';
+
+const CONTROLLER_SELECT_MODAL: OverlayHostedModal = 'controller-select';
+const CONTROLLER_SELECT_OPEN_TIMEOUT_MS = 1500;
+
+export async function openControllerSelectModal(deps: {
+  ensureOverlayStartupPrereqs: () => void;
+  ensureOverlayWindowsReadyForVisibilityActions: () => void;
+  sendToActiveOverlayWindow: (
+    channel: string,
+    payload?: unknown,
+    runtimeOptions?: {
+      restoreOnModalClose?: OverlayHostedModal;
+      preferModalWindow?: boolean;
+    },
+  ) => boolean;
+  waitForModalOpen: (modal: OverlayHostedModal, timeoutMs: number) => Promise<boolean>;
+  logWarn: (message: string) => void;
+}): Promise<boolean> {
+  return await retryOverlayModalOpen(
+    {
+      waitForModalOpen: deps.waitForModalOpen,
+      logWarn: deps.logWarn,
+    },
+    {
+      modal: CONTROLLER_SELECT_MODAL,
+      timeoutMs: CONTROLLER_SELECT_OPEN_TIMEOUT_MS,
+      retryWarning:
+        'Controller select modal did not acknowledge modal open on first attempt; retrying dedicated modal window.',
+      sendOpen: () =>
+        openOverlayHostedModal(
+          {
+            ensureOverlayStartupPrereqs: deps.ensureOverlayStartupPrereqs,
+            ensureOverlayWindowsReadyForVisibilityActions:
+              deps.ensureOverlayWindowsReadyForVisibilityActions,
+            sendToActiveOverlayWindow: deps.sendToActiveOverlayWindow,
+          },
+          {
+            channel: IPC_CHANNELS.event.controllerSelectOpen,
+            modal: CONTROLLER_SELECT_MODAL,
+            preferModalWindow: true,
+          },
+        ),
+    },
+  );
+}
diff --git a/src/main/runtime/first-run-setup-service.test.ts b/src/main/runtime/first-run-setup-service.test.ts
index c4cb3ee4..95ed94aa 100644
--- a/src/main/runtime/first-run-setup-service.test.ts
+++ b/src/main/runtime/first-run-setup-service.test.ts
@@ -43,7 +43,11 @@ function makeArgs(overrides: Partial<CliArgs> = {}): CliArgs {
     triggerSubsync: false,
     markAudioCard: false,
     toggleStatsOverlay: false,
+    toggleSubtitleSidebar: false,
     openRuntimeOptions: false,
+    openSessionHelp: false,
+    openControllerSelect: false,
+    openControllerDebug: false,
     openJimaku: false,
     openYoutubePicker: false,
     openPlaylistBrowser: false,
diff --git a/src/main/runtime/global-shortcuts-runtime-handlers.test.ts b/src/main/runtime/global-shortcuts-runtime-handlers.test.ts
index 963d84f8..e192fae7 100644
--- a/src/main/runtime/global-shortcuts-runtime-handlers.test.ts
+++ b/src/main/runtime/global-shortcuts-runtime-handlers.test.ts
@@ -18,6 +18,10 @@ function createShortcuts(): ConfiguredShortcuts {
     markAudioCard: null,
     openRuntimeOptions: null,
     openJimaku: null,
+    openSessionHelp: null,
+    openControllerSelect: null,
+    openControllerDebug: null,
+    toggleSubtitleSidebar: null,
   };
 }
 
diff --git a/src/main/runtime/global-shortcuts.test.ts b/src/main/runtime/global-shortcuts.test.ts
index a2fe05cf..995c0ce1 100644
--- a/src/main/runtime/global-shortcuts.test.ts
+++ b/src/main/runtime/global-shortcuts.test.ts
@@ -22,6 +22,10 @@ function createShortcuts(): ConfiguredShortcuts {
     markAudioCard: null,
     openRuntimeOptions: null,
     openJimaku: null,
+    openSessionHelp: null,
+    openControllerSelect: null,
+    openControllerDebug: null,
+    toggleSubtitleSidebar: null,
   };
 }
 
diff --git a/src/main/runtime/jimaku-open.ts b/src/main/runtime/jimaku-open.ts
new file mode 100644
index 00000000..6cd6096c
--- /dev/null
+++ b/src/main/runtime/jimaku-open.ts
@@ -0,0 +1,48 @@
+import type { OverlayHostedModal } from '../../shared/ipc/contracts';
+import { IPC_CHANNELS } from '../../shared/ipc/contracts';
+import { openOverlayHostedModal, retryOverlayModalOpen } from './overlay-hosted-modal-open';
+
+const JIMAKU_MODAL: OverlayHostedModal = 'jimaku';
+const JIMAKU_OPEN_TIMEOUT_MS = 1500;
+
+export async function openJimakuModal(deps: {
+  ensureOverlayStartupPrereqs: () => void;
+  ensureOverlayWindowsReadyForVisibilityActions: () => void;
+  sendToActiveOverlayWindow: (
+    channel: string,
+    payload?: unknown,
+    runtimeOptions?: {
+      restoreOnModalClose?: OverlayHostedModal;
+      preferModalWindow?: boolean;
+    },
+  ) => boolean;
+  waitForModalOpen: (modal: OverlayHostedModal, timeoutMs: number) => Promise<boolean>;
+  logWarn: (message: string) => void;
+}): Promise<boolean> {
+  return await retryOverlayModalOpen(
+    {
+      waitForModalOpen: deps.waitForModalOpen,
+      logWarn: deps.logWarn,
+    },
+    {
+      modal: JIMAKU_MODAL,
+      timeoutMs: JIMAKU_OPEN_TIMEOUT_MS,
+      retryWarning:
+        'Jimaku modal did not acknowledge modal open on first attempt; retrying dedicated modal window.',
+      sendOpen: () =>
+        openOverlayHostedModal(
+          {
+            ensureOverlayStartupPrereqs: deps.ensureOverlayStartupPrereqs,
+            ensureOverlayWindowsReadyForVisibilityActions:
+              deps.ensureOverlayWindowsReadyForVisibilityActions,
+            sendToActiveOverlayWindow: deps.sendToActiveOverlayWindow,
+          },
+          {
+            channel: IPC_CHANNELS.event.jimakuOpen,
+            modal: JIMAKU_MODAL,
+            preferModalWindow: true,
+          },
+        ),
+    },
+  );
+}
diff --git a/src/main/runtime/overlay-hosted-modal-open.ts b/src/main/runtime/overlay-hosted-modal-open.ts
index ab850da8..15366ae8 100644
--- a/src/main/runtime/overlay-hosted-modal-open.ts
+++ b/src/main/runtime/overlay-hosted-modal-open.ts
@@ -27,3 +27,31 @@ export function openOverlayHostedModal(
     preferModalWindow: input.preferModalWindow,
   });
 }
+
+export async function retryOverlayModalOpen(
+  deps: {
+    waitForModalOpen: (modal: OverlayHostedModal, timeoutMs: number) => Promise<boolean>;
+    logWarn: (message: string) => void;
+  },
+  input: {
+    modal: OverlayHostedModal;
+    timeoutMs: number;
+    retryWarning: string;
+    sendOpen: () => boolean;
+  },
+): Promise<boolean> {
+  if (!input.sendOpen()) {
+    return false;
+  }
+
+  if (await deps.waitForModalOpen(input.modal, input.timeoutMs)) {
+    return true;
+  }
+
+  deps.logWarn(input.retryWarning);
+  if (!input.sendOpen()) {
+    return false;
+  }
+
+  return await deps.waitForModalOpen(input.modal, input.timeoutMs);
+}
diff --git a/src/main/runtime/overlay-modal-input-state.test.ts b/src/main/runtime/overlay-modal-input-state.test.ts
index cda2d194..694f7e1c 100644
--- a/src/main/runtime/overlay-modal-input-state.test.ts
+++ b/src/main/runtime/overlay-modal-input-state.test.ts
@@ -23,6 +23,9 @@ function createModalWindow() {
     setIgnoreMouseEvents: (ignore: boolean) => {
       calls.push(`ignore:${ignore}`);
     },
+    setFocusable: (focusable: boolean) => {
+      calls.push(`focusable:${focusable}`);
+    },
     setAlwaysOnTop: (flag: boolean, level?: string, relativeLevel?: number) => {
       calls.push(`top:${flag}:${level ?? ''}:${relativeLevel ?? ''}`);
     },
@@ -58,6 +61,7 @@ test('overlay modal input state activates modal window interactivity and syncs d
 
   assert.equal(state.getModalInputExclusive(), true);
   assert.deepEqual(modalWindow.calls, [
+    'focusable:true',
     'ignore:false',
     'top:true:screen-saver:1',
     'focus',
@@ -66,6 +70,25 @@ test('overlay modal input state activates modal window interactivity and syncs d
   assert.deepEqual(calls, ['shortcuts:true', 'visibility']);
 });
 
+test('overlay modal input state restores main window focus on deactivation', () => {
+  const modalWindow = createModalWindow();
+  const calls: string[] = [];
+  const state = createOverlayModalInputState({
+    getModalWindow: () => modalWindow as never,
+    syncOverlayShortcutsForModal: () => {},
+    syncOverlayVisibilityForModal: () => {},
+    restoreMainWindowFocus: () => {
+      calls.push('restore-focus');
+    },
+  });
+
+  state.handleModalInputStateChange(true);
+  assert.deepEqual(calls, []);
+
+  state.handleModalInputStateChange(false);
+  assert.deepEqual(calls, ['restore-focus']);
+});
+
 test('overlay modal input state is idempotent for unchanged state', () => {
   const calls: string[] = [];
   const state = createOverlayModalInputState({
diff --git a/src/main/runtime/overlay-modal-input-state.ts b/src/main/runtime/overlay-modal-input-state.ts
index b095ca13..fd49a952 100644
--- a/src/main/runtime/overlay-modal-input-state.ts
+++ b/src/main/runtime/overlay-modal-input-state.ts
@@ -1,9 +1,30 @@
 import type { BrowserWindow } from 'electron';
 
+function requestOverlayApplicationFocus(): void {
+  try {
+    const electron = require('electron') as {
+      app?: {
+        focus?: (options?: { steal?: boolean }) => void;
+      };
+    };
+    electron.app?.focus?.({ steal: true });
+  } catch {
+    // Ignore focus-steal failures in non-Electron test environments.
+  }
+}
+
+function setWindowFocusable(window: BrowserWindow): void {
+  const maybeFocusableWindow = window as BrowserWindow & {
+    setFocusable?: (focusable: boolean) => void;
+  };
+  maybeFocusableWindow.setFocusable?.(true);
+}
+
 export type OverlayModalInputStateDeps = {
   getModalWindow: () => BrowserWindow | null;
   syncOverlayShortcutsForModal: (isActive: boolean) => void;
   syncOverlayVisibilityForModal: () => void;
+  restoreMainWindowFocus?: () => void;
 };
 
 export function createOverlayModalInputState(deps: OverlayModalInputStateDeps) {
@@ -18,6 +39,8 @@ export function createOverlayModalInputState(deps: OverlayModalInputStateDeps) {
     if (isActive) {
       const modalWindow = deps.getModalWindow();
       if (modalWindow && !modalWindow.isDestroyed()) {
+        setWindowFocusable(modalWindow);
+        requestOverlayApplicationFocus();
         modalWindow.setIgnoreMouseEvents(false);
         modalWindow.setAlwaysOnTop(true, 'screen-saver', 1);
         modalWindow.focus();
@@ -29,6 +52,9 @@ export function createOverlayModalInputState(deps: OverlayModalInputStateDeps) {
 
     deps.syncOverlayShortcutsForModal(isActive);
     deps.syncOverlayVisibilityForModal();
+    if (!isActive) {
+      deps.restoreMainWindowFocus?.();
+    }
   };
 
   return {
diff --git a/src/main/runtime/playlist-browser-open.test.ts b/src/main/runtime/playlist-browser-open.test.ts
index 970d10e9..9fe9ef4e 100644
--- a/src/main/runtime/playlist-browser-open.test.ts
+++ b/src/main/runtime/playlist-browser-open.test.ts
@@ -3,10 +3,10 @@ import test from 'node:test';
 import { IPC_CHANNELS } from '../../shared/ipc/contracts';
 import { openPlaylistBrowser } from './playlist-browser-open';
 
-test('playlist browser open bootstraps overlay runtime before dispatching the modal event', () => {
+test('playlist browser open bootstraps overlay runtime and sends modal event with preferModalWindow', async () => {
   const calls: string[] = [];
 
-  const opened = openPlaylistBrowser({
+  const opened = await openPlaylistBrowser({
     ensureOverlayStartupPrereqs: () => {
       calls.push('prereqs');
     },
@@ -18,11 +18,31 @@ test('playlist browser open bootstraps overlay runtime before dispatching the mo
       assert.equal(payload, undefined);
       assert.deepEqual(runtimeOptions, {
         restoreOnModalClose: 'playlist-browser',
+        preferModalWindow: true,
       });
       return true;
     },
+    waitForModalOpen: async () => true,
+    logWarn: () => {},
   });
 
   assert.equal(opened, true);
   assert.deepEqual(calls, ['prereqs', 'windows', `send:${IPC_CHANNELS.event.playlistBrowserOpen}`]);
 });
+
+test('playlist browser open retries after first attempt timeout', async () => {
+  let attempt = 0;
+  const opened = await openPlaylistBrowser({
+    ensureOverlayStartupPrereqs: () => {},
+    ensureOverlayWindowsReadyForVisibilityActions: () => {},
+    sendToActiveOverlayWindow: () => true,
+    waitForModalOpen: async () => {
+      attempt += 1;
+      return attempt >= 2;
+    },
+    logWarn: () => {},
+  });
+
+  assert.equal(opened, true);
+  assert.equal(attempt, 2);
+});
diff --git a/src/main/runtime/playlist-browser-open.ts b/src/main/runtime/playlist-browser-open.ts
index ba4ce1f8..db4fe4e0 100644
--- a/src/main/runtime/playlist-browser-open.ts
+++ b/src/main/runtime/playlist-browser-open.ts
@@ -1,9 +1,11 @@
 import type { OverlayHostedModal } from '../../shared/ipc/contracts';
 import { IPC_CHANNELS } from '../../shared/ipc/contracts';
+import { openOverlayHostedModal, retryOverlayModalOpen } from './overlay-hosted-modal-open';
 
 const PLAYLIST_BROWSER_MODAL: OverlayHostedModal = 'playlist-browser';
+const PLAYLIST_BROWSER_OPEN_TIMEOUT_MS = 1500;
 
-export function openPlaylistBrowser(deps: {
+export async function openPlaylistBrowser(deps: {
   ensureOverlayStartupPrereqs: () => void;
   ensureOverlayWindowsReadyForVisibilityActions: () => void;
   sendToActiveOverlayWindow: (
@@ -14,10 +16,33 @@ export function openPlaylistBrowser(deps: {
       preferModalWindow?: boolean;
     },
   ) => boolean;
-}): boolean {
-  deps.ensureOverlayStartupPrereqs();
-  deps.ensureOverlayWindowsReadyForVisibilityActions();
-  return deps.sendToActiveOverlayWindow(IPC_CHANNELS.event.playlistBrowserOpen, undefined, {
-    restoreOnModalClose: PLAYLIST_BROWSER_MODAL,
-  });
+  waitForModalOpen: (modal: OverlayHostedModal, timeoutMs: number) => Promise<boolean>;
+  logWarn: (message: string) => void;
+}): Promise<boolean> {
+  return await retryOverlayModalOpen(
+    {
+      waitForModalOpen: deps.waitForModalOpen,
+      logWarn: deps.logWarn,
+    },
+    {
+      modal: PLAYLIST_BROWSER_MODAL,
+      timeoutMs: PLAYLIST_BROWSER_OPEN_TIMEOUT_MS,
+      retryWarning:
+        'Playlist browser modal did not acknowledge modal open on first attempt; retrying dedicated modal window.',
+      sendOpen: () =>
+        openOverlayHostedModal(
+          {
+            ensureOverlayStartupPrereqs: deps.ensureOverlayStartupPrereqs,
+            ensureOverlayWindowsReadyForVisibilityActions:
+              deps.ensureOverlayWindowsReadyForVisibilityActions,
+            sendToActiveOverlayWindow: deps.sendToActiveOverlayWindow,
+          },
+          {
+            channel: IPC_CHANNELS.event.playlistBrowserOpen,
+            modal: PLAYLIST_BROWSER_MODAL,
+            preferModalWindow: true,
+          },
+        ),
+    },
+  );
 }
diff --git a/src/main/runtime/runtime-options-open.ts b/src/main/runtime/runtime-options-open.ts
index 3296cfd3..bf73d896 100644
--- a/src/main/runtime/runtime-options-open.ts
+++ b/src/main/runtime/runtime-options-open.ts
@@ -1,5 +1,5 @@
 import type { OverlayHostedModal } from '../../shared/ipc/contracts';
-import { openOverlayHostedModal } from './overlay-hosted-modal-open';
+import { openOverlayHostedModal, retryOverlayModalOpen } from './overlay-hosted-modal-open';
 
 const RUNTIME_OPTIONS_MODAL: OverlayHostedModal = 'runtime-options';
 const RUNTIME_OPTIONS_OPEN_TIMEOUT_MS = 1500;
@@ -18,36 +18,30 @@ export async function openRuntimeOptionsModal(deps: {
   waitForModalOpen: (modal: OverlayHostedModal, timeoutMs: number) => Promise<boolean>;
   logWarn: (message: string) => void;
 }): Promise<boolean> {
-  const sendOpen = (): boolean => {
-    return openOverlayHostedModal(
-      {
-        ensureOverlayStartupPrereqs: deps.ensureOverlayStartupPrereqs,
-        ensureOverlayWindowsReadyForVisibilityActions:
-          deps.ensureOverlayWindowsReadyForVisibilityActions,
-        sendToActiveOverlayWindow: deps.sendToActiveOverlayWindow,
-      },
-      {
-        channel: 'runtime-options:open',
-        modal: RUNTIME_OPTIONS_MODAL,
-        preferModalWindow: true,
-      },
-    );
-  };
-
-  if (!sendOpen()) {
-    return false;
-  }
-
-  if (await deps.waitForModalOpen(RUNTIME_OPTIONS_MODAL, RUNTIME_OPTIONS_OPEN_TIMEOUT_MS)) {
-    return true;
-  }
-
-  deps.logWarn(
-    'Runtime options modal did not acknowledge modal open on first attempt; retrying dedicated modal window.',
+  return await retryOverlayModalOpen(
+    {
+      waitForModalOpen: deps.waitForModalOpen,
+      logWarn: deps.logWarn,
+    },
+    {
+      modal: RUNTIME_OPTIONS_MODAL,
+      timeoutMs: RUNTIME_OPTIONS_OPEN_TIMEOUT_MS,
+      retryWarning:
+        'Runtime options modal did not acknowledge modal open on first attempt; retrying dedicated modal window.',
+      sendOpen: () =>
+        openOverlayHostedModal(
+          {
+            ensureOverlayStartupPrereqs: deps.ensureOverlayStartupPrereqs,
+            ensureOverlayWindowsReadyForVisibilityActions:
+              deps.ensureOverlayWindowsReadyForVisibilityActions,
+            sendToActiveOverlayWindow: deps.sendToActiveOverlayWindow,
+          },
+          {
+            channel: 'runtime-options:open',
+            modal: RUNTIME_OPTIONS_MODAL,
+            preferModalWindow: true,
+          },
+        ),
+    },
   );
-  if (!sendOpen()) {
-    return false;
-  }
-
-  return await deps.waitForModalOpen(RUNTIME_OPTIONS_MODAL, RUNTIME_OPTIONS_OPEN_TIMEOUT_MS);
 }
diff --git a/src/main/runtime/session-help-open.ts b/src/main/runtime/session-help-open.ts
new file mode 100644
index 00000000..86b7b59f
--- /dev/null
+++ b/src/main/runtime/session-help-open.ts
@@ -0,0 +1,48 @@
+import type { OverlayHostedModal } from '../../shared/ipc/contracts';
+import { IPC_CHANNELS } from '../../shared/ipc/contracts';
+import { openOverlayHostedModal, retryOverlayModalOpen } from './overlay-hosted-modal-open';
+
+const SESSION_HELP_MODAL: OverlayHostedModal = 'session-help';
+const SESSION_HELP_OPEN_TIMEOUT_MS = 1500;
+
+export async function openSessionHelpModal(deps: {
+  ensureOverlayStartupPrereqs: () => void;
+  ensureOverlayWindowsReadyForVisibilityActions: () => void;
+  sendToActiveOverlayWindow: (
+    channel: string,
+    payload?: unknown,
+    runtimeOptions?: {
+      restoreOnModalClose?: OverlayHostedModal;
+      preferModalWindow?: boolean;
+    },
+  ) => boolean;
+  waitForModalOpen: (modal: OverlayHostedModal, timeoutMs: number) => Promise<boolean>;
+  logWarn: (message: string) => void;
+}): Promise<boolean> {
+  return await retryOverlayModalOpen(
+    {
+      waitForModalOpen: deps.waitForModalOpen,
+      logWarn: deps.logWarn,
+    },
+    {
+      modal: SESSION_HELP_MODAL,
+      timeoutMs: SESSION_HELP_OPEN_TIMEOUT_MS,
+      retryWarning:
+        'Session help modal did not acknowledge modal open on first attempt; retrying dedicated modal window.',
+      sendOpen: () =>
+        openOverlayHostedModal(
+          {
+            ensureOverlayStartupPrereqs: deps.ensureOverlayStartupPrereqs,
+            ensureOverlayWindowsReadyForVisibilityActions:
+              deps.ensureOverlayWindowsReadyForVisibilityActions,
+            sendToActiveOverlayWindow: deps.sendToActiveOverlayWindow,
+          },
+          {
+            channel: IPC_CHANNELS.event.sessionHelpOpen,
+            modal: SESSION_HELP_MODAL,
+            preferModalWindow: true,
+          },
+        ),
+    },
+  );
+}
diff --git a/src/main/runtime/youtube-picker-open.ts b/src/main/runtime/youtube-picker-open.ts
index fe231fe2..aa1b593e 100644
--- a/src/main/runtime/youtube-picker-open.ts
+++ b/src/main/runtime/youtube-picker-open.ts
@@ -1,5 +1,6 @@
 import type { YoutubePickerOpenPayload } from '../../types';
 import type { OverlayHostedModal } from '../../shared/ipc/contracts';
+import { retryOverlayModalOpen } from './overlay-hosted-modal-open';
 
 const YOUTUBE_PICKER_MODAL: OverlayHostedModal = 'youtube-track-picker';
 const YOUTUBE_PICKER_OPEN_TIMEOUT_MS = 1500;
@@ -19,24 +20,21 @@ export async function openYoutubeTrackPicker(
   },
   payload: YoutubePickerOpenPayload,
 ): Promise<boolean> {
-  const sendPickerOpen = (): boolean =>
-    deps.sendToActiveOverlayWindow('youtube:picker-open', payload, {
-      restoreOnModalClose: YOUTUBE_PICKER_MODAL,
-      preferModalWindow: true,
-    });
-
-  if (!sendPickerOpen()) {
-    return false;
-  }
-  if (await deps.waitForModalOpen(YOUTUBE_PICKER_MODAL, YOUTUBE_PICKER_OPEN_TIMEOUT_MS)) {
-    return true;
-  }
-
-  deps.logWarn(
-    'YouTube subtitle picker did not acknowledge modal open on first attempt; retrying dedicated modal window.',
+  return await retryOverlayModalOpen(
+    {
+      waitForModalOpen: deps.waitForModalOpen,
+      logWarn: deps.logWarn,
+    },
+    {
+      modal: YOUTUBE_PICKER_MODAL,
+      timeoutMs: YOUTUBE_PICKER_OPEN_TIMEOUT_MS,
+      retryWarning:
+        'YouTube subtitle picker did not acknowledge modal open on first attempt; retrying dedicated modal window.',
+      sendOpen: () =>
+        deps.sendToActiveOverlayWindow('youtube:picker-open', payload, {
+          restoreOnModalClose: YOUTUBE_PICKER_MODAL,
+          preferModalWindow: true,
+        }),
+    },
   );
-  if (!sendPickerOpen()) {
-    return false;
-  }
-  return await deps.waitForModalOpen(YOUTUBE_PICKER_MODAL, YOUTUBE_PICKER_OPEN_TIMEOUT_MS);
 }
diff --git a/src/preload.ts b/src/preload.ts
index faaca5be..7bb846bb 100644
--- a/src/preload.ts
+++ b/src/preload.ts
@@ -123,6 +123,9 @@ function createQueuedIpcListenerWithPayload<T>(
 }
 
 const onOpenRuntimeOptionsEvent = createQueuedIpcListener(IPC_CHANNELS.event.runtimeOptionsOpen);
+const onOpenSessionHelpEvent = createQueuedIpcListener(IPC_CHANNELS.event.sessionHelpOpen);
+const onOpenControllerSelectEvent = createQueuedIpcListener(IPC_CHANNELS.event.controllerSelectOpen);
+const onOpenControllerDebugEvent = createQueuedIpcListener(IPC_CHANNELS.event.controllerDebugOpen);
 const onOpenJimakuEvent = createQueuedIpcListener(IPC_CHANNELS.event.jimakuOpen);
 const onOpenYoutubeTrackPickerEvent = createQueuedIpcListenerWithPayload<YoutubePickerOpenPayload>(
   IPC_CHANNELS.event.youtubePickerOpen,
@@ -142,6 +145,9 @@ const onSubsyncManualOpenEvent = createQueuedIpcListenerWithPayload<SubsyncManua
   IPC_CHANNELS.event.subsyncOpenManual,
   (payload) => payload as SubsyncManualPayload,
 );
+const onSubtitleSidebarToggleEvent = createQueuedIpcListener(
+  IPC_CHANNELS.event.subtitleSidebarToggle,
+);
 const onKikuFieldGroupingRequestEvent =
   createQueuedIpcListenerWithPayload<KikuFieldGroupingRequestData>(
     IPC_CHANNELS.event.kikuFieldGroupingRequest,
@@ -326,9 +332,13 @@ const electronAPI: ElectronAPI = {
     );
   },
   onOpenRuntimeOptions: onOpenRuntimeOptionsEvent,
+  onOpenSessionHelp: onOpenSessionHelpEvent,
+  onOpenControllerSelect: onOpenControllerSelectEvent,
+  onOpenControllerDebug: onOpenControllerDebugEvent,
   onOpenJimaku: onOpenJimakuEvent,
   onOpenYoutubeTrackPicker: onOpenYoutubeTrackPickerEvent,
   onOpenPlaylistBrowser: onOpenPlaylistBrowserEvent,
+  onSubtitleSidebarToggle: onSubtitleSidebarToggleEvent,
   onCancelYoutubeTrackPicker: onCancelYoutubeTrackPickerEvent,
   onKeyboardModeToggleRequested: onKeyboardModeToggleRequestedEvent,
   onLookupWindowToggleRequested: onLookupWindowToggleRequestedEvent,
diff --git a/src/renderer/handlers/keyboard.test.ts b/src/renderer/handlers/keyboard.test.ts
index 815c0acd..aeb736d6 100644
--- a/src/renderer/handlers/keyboard.test.ts
+++ b/src/renderer/handlers/keyboard.test.ts
@@ -69,6 +69,10 @@ function installKeyboardTestGlobals() {
     markAudioCard: '',
     openRuntimeOptions: 'CommandOrControl+Shift+O',
     openJimaku: 'Ctrl+Shift+J',
+    openSessionHelp: 'CommandOrControl+Shift+H',
+    openControllerSelect: 'Alt+C',
+    openControllerDebug: 'Alt+Shift+C',
+    toggleSubtitleSidebar: '',
     toggleVisibleOverlayGlobal: '',
   };
   let markActiveVideoWatchedResult = true;
@@ -321,8 +325,6 @@ function installKeyboardTestGlobals() {
 function createKeyboardHandlerHarness() {
   const testGlobals = installKeyboardTestGlobals();
   const subtitleRootClassList = createClassList();
-  let controllerSelectOpenCount = 0;
-  let controllerDebugOpenCount = 0;
   let controllerSelectKeydownCount = 0;
   let playlistBrowserKeydownCount = 0;
 
@@ -373,20 +375,12 @@ function createKeyboardHandlerHarness() {
     openSessionHelpModal: () => {},
     appendClipboardVideoToQueue: () => {},
     getPlaybackPaused: () => testGlobals.getPlaybackPaused(),
-    openControllerSelectModal: () => {
-      controllerSelectOpenCount += 1;
-    },
-    openControllerDebugModal: () => {
-      controllerDebugOpenCount += 1;
-    },
   });
 
   return {
     ctx,
     handlers,
     testGlobals,
-    controllerSelectOpenCount: () => controllerSelectOpenCount,
-    controllerDebugOpenCount: () => controllerDebugOpenCount,
     controllerSelectKeydownCount: () => controllerSelectKeydownCount,
     playlistBrowserKeydownCount: () => playlistBrowserKeydownCount,
     setWordCount: (count: number) => {
@@ -659,31 +653,78 @@ test('keyboard mode: controller helpers dispatch popup audio play/cycle and scro
   }
 });
 
-test('keyboard mode: Alt+Shift+C opens controller debug modal', async () => {
-  const { testGlobals, handlers, controllerDebugOpenCount } = createKeyboardHandlerHarness();
+test('keyboard mode: configured controller debug binding dispatches session action', async () => {
+  const { testGlobals, handlers } = createKeyboardHandlerHarness();
 
   try {
     await handlers.setupMpvInputForwarding();
+    handlers.updateSessionBindings([
+      {
+        sourcePath: 'shortcuts.openControllerDebug',
+        originalKey: 'Alt+Shift+D',
+        key: { code: 'KeyD', modifiers: ['alt', 'shift'] },
+        actionType: 'session-action',
+        actionId: 'openControllerDebug',
+      },
+    ] as never);
 
     testGlobals.dispatchKeydown({
-      key: 'C',
-      code: 'KeyC',
+      key: 'D',
+      code: 'KeyD',
       altKey: true,
       shiftKey: true,
     });
 
-    assert.equal(controllerDebugOpenCount(), 1);
+    assert.deepEqual(testGlobals.sessionActions, [{ actionId: 'openControllerDebug', payload: undefined }]);
   } finally {
     testGlobals.restore();
   }
 });
 
-test('keyboard mode: Alt+Shift+C opens controller debug modal even while popup is visible', async () => {
-  const { ctx, testGlobals, handlers, controllerDebugOpenCount } = createKeyboardHandlerHarness();
+test('keyboard mode: configured controller debug binding is not swallowed while popup is visible', async () => {
+  const { ctx, testGlobals, handlers } = createKeyboardHandlerHarness();
 
   try {
     await handlers.setupMpvInputForwarding();
     ctx.state.yomitanPopupVisible = true;
+    testGlobals.setPopupVisible(true);
+    handlers.updateSessionBindings([
+      {
+        sourcePath: 'shortcuts.openControllerDebug',
+        originalKey: 'Alt+Shift+D',
+        key: { code: 'KeyD', modifiers: ['alt', 'shift'] },
+        actionType: 'session-action',
+        actionId: 'openControllerDebug',
+      },
+    ] as never);
+
+    testGlobals.dispatchKeydown({
+      key: 'D',
+      code: 'KeyD',
+      altKey: true,
+      shiftKey: true,
+    });
+
+    assert.deepEqual(testGlobals.sessionActions, [{ actionId: 'openControllerDebug', payload: undefined }]);
+  } finally {
+    testGlobals.restore();
+  }
+});
+
+test('keyboard mode: former fixed Alt+Shift+C does nothing when controller debug is remapped', async () => {
+  const { testGlobals, handlers } = createKeyboardHandlerHarness();
+
+  try {
+    await handlers.setupMpvInputForwarding();
+    handlers.updateSessionBindings([
+      {
+        sourcePath: 'shortcuts.openControllerDebug',
+        originalKey: 'Alt+Shift+D',
+        key: { code: 'KeyD', modifiers: ['alt', 'shift'] },
+        actionType: 'session-action',
+        actionId: 'openControllerDebug',
+      },
+    ] as never);
 
     testGlobals.dispatchKeydown({
       key: 'C',
@@ -692,7 +733,7 @@ test('keyboard mode: Alt+Shift+C opens controller debug modal even while popup i
       shiftKey: true,
     });
 
-    assert.equal(controllerDebugOpenCount(), 1);
+    assert.deepEqual(testGlobals.sessionActions, []);
   } finally {
     testGlobals.restore();
   }
diff --git a/src/renderer/handlers/keyboard.ts b/src/renderer/handlers/keyboard.ts
index 1e9bc42b..b4ad5dd5 100644
--- a/src/renderer/handlers/keyboard.ts
+++ b/src/renderer/handlers/keyboard.ts
@@ -27,8 +27,6 @@ export function createKeyboardHandlers(
     }) => void;
     appendClipboardVideoToQueue: () => void;
     getPlaybackPaused: () => Promise<boolean | null>;
-    openControllerSelectModal: () => void;
-    openControllerDebugModal: () => void;
     toggleSubtitleSidebarModal?: () => void;
   },
 ) {
@@ -298,10 +296,6 @@ export function createKeyboardHandlers(
     return isPrimaryModifierPressed(e) && !e.altKey && !e.shiftKey && isYKey && !e.repeat;
   }
 
-  function isControllerModalShortcut(e: KeyboardEvent): boolean {
-    return !e.ctrlKey && !e.metaKey && e.altKey && !e.repeat && e.code === 'KeyC';
-  }
-
   function isSubtitleSidebarToggle(e: KeyboardEvent): boolean {
     const toggleKey = ctx.state.subtitleSidebarToggleKey;
     if (!toggleKey) return false;
@@ -1040,10 +1034,7 @@ export function createKeyboardHandlers(
         return;
       }
 
-      if (
-        (ctx.state.yomitanPopupVisible || isYomitanPopupVisible(document)) &&
-        !isControllerModalShortcut(e)
-      ) {
+      if (ctx.state.yomitanPopupVisible || isYomitanPopupVisible(document)) {
         if (handleYomitanPopupKeybind(e)) {
           e.preventDefault();
           return;
@@ -1100,16 +1091,6 @@ export function createKeyboardHandlers(
         return;
       }
 
-      if (isControllerModalShortcut(e)) {
-        e.preventDefault();
-        if (e.shiftKey) {
-          options.openControllerDebugModal();
-        } else {
-          options.openControllerSelectModal();
-        }
-        return;
-      }
-
       const keyString = keyEventToString(e);
       const binding = ctx.state.sessionBindingMap.get(keyString);
       if (binding) {
diff --git a/src/renderer/modals/session-help.ts b/src/renderer/modals/session-help.ts
index 65f10f81..f91210c8 100644
--- a/src/renderer/modals/session-help.ts
+++ b/src/renderer/modals/session-help.ts
@@ -586,31 +586,10 @@ export function createSessionHelpModal(
     }
   }
 
-  async function openSessionHelpModal(opening: SessionHelpBindingInfo): Promise<void> {
+  function openSessionHelpModal(opening: SessionHelpBindingInfo): void {
     openBinding = opening;
     priorFocus = document.activeElement;
 
-    const dataLoaded = await render();
-
-    ctx.dom.sessionHelpShortcut.textContent = `Session help opened with ${formatBindingHint(openBinding)}`;
-    if (openBinding.fallbackUnavailable) {
-      ctx.dom.sessionHelpWarning.textContent =
-        'Both Y-H and Y-K are bound; Y-K remains the fallback for this session.';
-    } else if (openBinding.fallbackUsed) {
-      ctx.dom.sessionHelpWarning.textContent = 'Y-H is already bound; using Y-K as fallback.';
-    } else {
-      ctx.dom.sessionHelpWarning.textContent = '';
-    }
-    if (dataLoaded) {
-      ctx.dom.sessionHelpStatus.textContent =
-        'Use Arrow keys, J/K/H/L, mouse, click, or / then type to filter. Esc closes.';
-    } else {
-      ctx.dom.sessionHelpStatus.textContent =
-        'Session help data is unavailable right now. Press Esc to close.';
-      ctx.dom.sessionHelpWarning.textContent =
-        'Unable to load latest shortcut settings from the runtime.';
-    }
-
     ctx.state.sessionHelpModalOpen = true;
     options.syncSettingsModalSubtitleSuppression();
     ctx.dom.overlay.classList.add('interactive');
@@ -623,6 +602,17 @@ export function createSessionHelpModal(
       window.electronAPI.setIgnoreMouseEvents(false);
     }
 
+    ctx.dom.sessionHelpShortcut.textContent = `Session help opened with ${formatBindingHint(openBinding)}`;
+    if (openBinding.fallbackUnavailable) {
+      ctx.dom.sessionHelpWarning.textContent =
+        'Both Y-H and Y-K are bound; Y-K remains the fallback for this session.';
+    } else if (openBinding.fallbackUsed) {
+      ctx.dom.sessionHelpWarning.textContent = 'Y-H is already bound; using Y-K as fallback.';
+    } else {
+      ctx.dom.sessionHelpWarning.textContent = '';
+    }
+    ctx.dom.sessionHelpStatus.textContent = 'Loading session help data...';
+
     if (focusGuard === null) {
       focusGuard = (event: FocusEvent) => {
         if (!ctx.state.sessionHelpModalOpen) return;
@@ -639,6 +629,19 @@ export function createSessionHelpModal(
     requestOverlayFocus();
     window.focus();
     enforceModalFocus();
+
+    void render().then((dataLoaded) => {
+      if (!ctx.state.sessionHelpModalOpen) return;
+      if (dataLoaded) {
+        ctx.dom.sessionHelpStatus.textContent =
+          'Use Arrow keys, J/K/H/L, mouse, click, or / then type to filter. Esc closes.';
+      } else {
+        ctx.dom.sessionHelpStatus.textContent =
+          'Session help data is unavailable right now. Press Esc to close.';
+        ctx.dom.sessionHelpWarning.textContent =
+          'Unable to load latest shortcut settings from the runtime.';
+      }
+    });
   }
 
   function closeSessionHelpModal(): void {
@@ -648,6 +651,7 @@ export function createSessionHelpModal(
     options.syncSettingsModalSubtitleSuppression();
     ctx.dom.sessionHelpModal.classList.add('hidden');
     ctx.dom.sessionHelpModal.setAttribute('aria-hidden', 'true');
+    window.electronAPI.notifyOverlayModalClosed('session-help');
     if (!ctx.state.isOverSubtitle && !options.modalStateReader.isAnyModalOpen()) {
       ctx.dom.overlay.classList.remove('interactive');
     }
diff --git a/src/renderer/renderer.ts b/src/renderer/renderer.ts
index 71420299..14b22016 100644
--- a/src/renderer/renderer.ts
+++ b/src/renderer/renderer.ts
@@ -178,14 +178,6 @@ const keyboardHandlers = createKeyboardHandlers(ctx, {
     void window.electronAPI.appendClipboardVideoToQueue();
   },
   getPlaybackPaused: () => window.electronAPI.getPlaybackPaused(),
-  openControllerSelectModal: () => {
-    controllerSelectModal.openControllerSelectModal();
-    window.electronAPI.notifyOverlayModalOpened('controller-select');
-  },
-  openControllerDebugModal: () => {
-    controllerDebugModal.openControllerDebugModal();
-    window.electronAPI.notifyOverlayModalOpened('controller-debug');
-  },
   toggleSubtitleSidebarModal: () => {
     void subtitleSidebarModal.toggleSubtitleSidebarModal();
   },
@@ -437,6 +429,28 @@ function registerModalOpenHandlers(): void {
       window.electronAPI.notifyOverlayModalOpened('runtime-options');
     });
   });
+  window.electronAPI.onOpenSessionHelp(() => {
+    runGuarded('session-help:open', () => {
+      sessionHelpModal.openSessionHelpModal({
+        bindingKey: 'KeyH',
+        fallbackUsed: false,
+        fallbackUnavailable: false,
+      });
+      window.electronAPI.notifyOverlayModalOpened('session-help');
+    });
+  });
+  window.electronAPI.onOpenControllerSelect(() => {
+    runGuarded('controller-select:open', () => {
+      controllerSelectModal.openControllerSelectModal();
+      window.electronAPI.notifyOverlayModalOpened('controller-select');
+    });
+  });
+  window.electronAPI.onOpenControllerDebug(() => {
+    runGuarded('controller-debug:open', () => {
+      controllerDebugModal.openControllerDebugModal();
+      window.electronAPI.notifyOverlayModalOpened('controller-debug');
+    });
+  });
   window.electronAPI.onOpenJimaku(() => {
     runGuarded('jimaku:open', () => {
       jimakuModal.openJimakuModal();
@@ -492,6 +506,12 @@ function registerKeyboardCommandHandlers(): void {
       keyboardHandlers.handleLookupWindowToggleRequested();
     });
   });
+
+  window.electronAPI.onSubtitleSidebarToggle(() => {
+    runGuarded('subtitle-sidebar:toggle', () => {
+      void subtitleSidebarModal.toggleSubtitleSidebarModal();
+    });
+  });
 }
 
 function runGuarded(action: string, fn: () => void): void {
diff --git a/src/shared/ipc/contracts.ts b/src/shared/ipc/contracts.ts
index 3d703a33..5b83d86c 100644
--- a/src/shared/ipc/contracts.ts
+++ b/src/shared/ipc/contracts.ts
@@ -11,6 +11,7 @@ export const OVERLAY_HOSTED_MODALS = [
   'controller-select',
   'controller-debug',
   'subtitle-sidebar',
+  'session-help',
 ] as const;
 export type OverlayHostedModal = (typeof OVERLAY_HOSTED_MODALS)[number];
 
@@ -111,6 +112,10 @@ export const IPC_CHANNELS = {
     playlistBrowserOpen: 'playlist-browser:open',
     keyboardModeToggleRequested: 'keyboard-mode-toggle:requested',
     lookupWindowToggleRequested: 'lookup-window-toggle:requested',
+    sessionHelpOpen: 'session-help:open',
+    controllerSelectOpen: 'controller-select:open',
+    controllerDebugOpen: 'controller-debug:open',
+    subtitleSidebarToggle: 'subtitle-sidebar:toggle',
     configHotReload: 'config:hot-reload',
   },
 } as const;
diff --git a/src/types/config.ts b/src/types/config.ts
index e6cc4208..f6e410c5 100644
--- a/src/types/config.ts
+++ b/src/types/config.ts
@@ -89,6 +89,10 @@ export interface ShortcutsConfig {
   markAudioCard?: string | null;
   openRuntimeOptions?: string | null;
   openJimaku?: string | null;
+  openSessionHelp?: string | null;
+  openControllerSelect?: string | null;
+  openControllerDebug?: string | null;
+  toggleSubtitleSidebar?: string | null;
 }
 
 export interface Config {
diff --git a/src/types/runtime.ts b/src/types/runtime.ts
index 0029fde1..2c9d4b36 100644
--- a/src/types/runtime.ts
+++ b/src/types/runtime.ts
@@ -399,9 +399,13 @@ export interface ElectronAPI {
   cycleRuntimeOption: (id: RuntimeOptionId, direction: 1 | -1) => Promise<RuntimeOptionApplyResult>;
   onRuntimeOptionsChanged: (callback: (options: RuntimeOptionState[]) => void) => void;
   onOpenRuntimeOptions: (callback: () => void) => void;
+  onOpenSessionHelp: (callback: () => void) => void;
+  onOpenControllerSelect: (callback: () => void) => void;
+  onOpenControllerDebug: (callback: () => void) => void;
   onOpenJimaku: (callback: () => void) => void;
   onOpenYoutubeTrackPicker: (callback: (payload: YoutubePickerOpenPayload) => void) => void;
   onOpenPlaylistBrowser: (callback: () => void) => void;
+  onSubtitleSidebarToggle: (callback: () => void) => void;
   onCancelYoutubeTrackPicker: (callback: () => void) => void;
   onKeyboardModeToggleRequested: (callback: () => void) => void;
   onLookupWindowToggleRequested: (callback: () => void) => void;
@@ -427,7 +431,8 @@ export interface ElectronAPI {
       | 'kiku'
       | 'controller-select'
       | 'controller-debug'
-      | 'subtitle-sidebar',
+      | 'subtitle-sidebar'
+      | 'session-help',
   ) => void;
   notifyOverlayModalOpened: (
     modal:
@@ -439,7 +444,8 @@ export interface ElectronAPI {
       | 'kiku'
       | 'controller-select'
       | 'controller-debug'
-      | 'subtitle-sidebar',
+      | 'subtitle-sidebar'
+      | 'session-help',
   ) => void;
   reportOverlayContentBounds: (measurement: OverlayContentMeasurement) => void;
   onConfigHotReload: (callback: (payload: ConfigHotReloadPayload) => void) => void;
diff --git a/src/types/session-bindings.ts b/src/types/session-bindings.ts
index 8da90521..9b510bc8 100644
--- a/src/types/session-bindings.ts
+++ b/src/types/session-bindings.ts
@@ -11,8 +11,12 @@ export type SessionActionId =
   | 'mineSentence'
   | 'mineSentenceMultiple'
   | 'toggleSecondarySub'
+  | 'toggleSubtitleSidebar'
   | 'markAudioCard'
   | 'openRuntimeOptions'
+  | 'openSessionHelp'
+  | 'openControllerSelect'
+  | 'openControllerDebug'
   | 'openJimaku'
   | 'openYoutubePicker'
   | 'openPlaylistBrowser'