I think it would be interesting to have a hotkey trigger the slide keys action. Something like this: user hits hotkey -> user left clicks (if hotkey was not mouse based) ->QT or Maya tool captures mouse movements (I think this is possible) -> keys slide as user moves mouse -> user releases left mouse, action is confirmed [OR] user right clicks/hits esc, action is canceled. Or something to that effect.
I think it would be interesting to have a hotkey trigger the slide keys action. Something like this: user hits hotkey -> user left clicks (if hotkey was not mouse based) ->QT or Maya tool captures mouse movements (I think this is possible) -> keys slide as user moves mouse -> user releases left mouse, action is confirmed [OR] user right clicks/hits esc, action is canceled. Or something to that effect.