This mod is wonderful, but it doesn't seem to handle stage lock correctly. It appears as a mappable button, but if you map it to something, it doesn't do anything. I've confirmed that Stage Lock works in general: when I hit Alt-L, the staging indicator turns pink. But mapping it to a joystick button does nothing.
Furthermore, if I engage stage lock using Alt-L, the button I've mapped to stage on my joystick overrides the lock and stages anyways!
Is anyone else seeing this, or is this a quirk of my setup?