diff --git a/script-opts/modernz.conf b/script-opts/modernz.conf
index 5dcfdd5..5557da9 100644
--- a/script-opts/modernz.conf
+++ b/script-opts/modernz.conf
@@ -144,6 +144,10 @@ ontop_button=yes
 loop_button=no
 # show speed control button
 speed_button=no
+# speed change amount per click
+speed_button_click=1
+# speed change amount on scroll
+speed_button_scroll=0.25
 # show info button
 info_button=yes
 # show fullscreen toggle button