I want to add a submenu to my ribbon menu similar to the print-> print preview/quick print menu on outlook 2007 email messages.  Basically, you hover your mouse over the print option and you get more options listed in the pane on the right.

I've tried using a controlcontainer item and having it bring up an explorer bar control but I am having difficulty making it look right (keyboard shortcuts, formatting the text displayed, etc). 

Is there an example somewhere of doing this?