Added in 2.5.8:
Action acActivateWindowUnderMouseWheel to control whether S+ activates the window below the mouse when scrolling the mouse wheel with Enable Mouse Wheel Relay active.
Basically, add this to your Global Lua to turn the setting on when you start S+ or click Apply/OK in the Settings window:function sp_init()
acActivateWindowUnderMouseWheel(1)
end
This will set that option as ON; call with 0 to turn that feature off:acActivateWindowUnderMouseWheel(0)
Of course, that action can be called from any gesture/hotkey script as well, if you wanted to define actions to turn the feature on or off.