[MonoDevelop] How do I move UI components in Monodevelop alpha 2

[alan battersby]

I want to reorganize my solution. Previously I placed some UI components
in their own separate sub project. Ive changed my mind and would like to
move them into a  folder  in my main project. Is there a way to do this.
I cant drag and drop  items from the  User  Interface folder of one
project into another.

Alan