.Map :: MoHAA Mapping

I have four brushes that are causing duplicate plane errors when I compile, I have read that I can find specific entities and brushes by typing some instruction into radiant, what do I type and where do I input what I type ?

Nice one

Jack

heres the room in which the error is occuring

<img border="0" src="http://members.aol.com/ogshowtimeuk/peenemunde_1.jpg" width="550" height="413">

edit -> find entity/brush

thanks a lot, I knew it had to be easy but couldnt see for looking.

Jack