Quote Originally Posted by Hamish Wilson View Post
Wrong way around there, Mutter had this feature long before Compiz, as did Xfwm and KWin. It is Compiz that is finally joining the party.
as i wrote above, for KWIN i couldn't find this working. though i found via google a description how it possible could be done but i didn't bothered to test it.

on mutter it works out of the box since i know mutter.