thanks for sharing and sorry for the late reply.

Right now you can't do this. Something along those lines is planned 
for future releases, though. For now, all I can offer to you is the 
Filesystem browser.

You can add any action a behaviour exposes into virtually any place 
in a custom menu. For this, just select "Mark's profile" in the Menu 
tab of the preferences and drag the desired action from the left 
palette to the place you want it to appear. That's really it :-)

Best regards, 
Felix