you almost had it (these commands already do exist, I just found them friday). here ya go:
VWMOnClickLeft
VWMOnClickRight
VWMOnClickMiddle

granted, I haven't tried them to see if they work, but you can give it a shot. ;)

edit: oh, sorry, after re-reading your post, I see that you want the available commands taken a step farther. plus, I see I shouldn't reply to posts when I'm exhausted and can barely stay awake. :P