Get a Room !

To edit Room Vertices use Control Click

Rooms can be combined with Filters to Copy and Paste selected primitives. 

Example:

click on image to view

(WithinRoom('CPU') And OnBottom) And (InPolygon Or IsTrack) And InAnyNet

Example 2: Vias and Copper Features On Top Layer

(WithinRoom('CPU') And IsVia) OR (OnTopLayer And NOT InAnyComponent AND WithinRoom('CPU'))

That's it !