Use of "Super_[L/R]" modifier in shortcut editor

[Harold Aling]

Is it possible to use the Super_L and Super_R (The keys with the 'flag' 
on it ;-) to create multi-key shortcuts in the Keyboard Preferences dialog?

I recently switched from daily compiled gentoo/xfce svn to Xubuntu 6.06 
so if it's already added in SVN, please forgive me for asking...

PS: The 'command' pop-up is resizeable, but the command entry input 
doesn't grow with it...


Cheers!

Harold.