docs: document scroll wheel emulation actions

diff --git a/docs/labwc-actions.5.scd b/docs/labwc-actions.5.scd
index cc61ddb97a1e80a76da0b90d4cc55517442f52b0..93e5fa828357afe7c0f384acaaf63bf1208e36a1 100644 (file)
--- a/docs/labwc-actions.5.scd
+++ b/docs/labwc-actions.5.scd
@@ -361,6 +361,17 @@ Actions are used in menus and keyboard/mouse bindings.
        Use together with the WarpCursor action to not just hide the cursor but
        to additionally move it away to prevent e.g. hover effects.
 
+*<action name="EnableScrollWheelEmulation" />*++
+*<action name="DisableScrollWheelEmulation" />*++
+*<action name="ToggleScrollWheelEmulation">*
+       Enable, disable or toggle scroll wheel emulation on cursor motion,
+       respectively. This can be useful for trackball mouses to use the
+       rotating ball not just for moving the cursor, but also for (mouse wheel)
+       scrolling.
+
+       See also *<libinput><scrollFactor>* in labwc-config(5) for fine tuning
+       the scroll speed.
+
 *<action name="EnableTabletMouseEmulation" />*++
 *<action name="DisableTabletMouseEmulation" />*++
 *<action name="ToggleTabletMouseEmulation">*