Something I just discovered by accident, that's pretty cool.  I'm not entirely sure whats going on and didn't find reference in the help file.  Note - you cannot do this by selecting a body from the Solid Bodies Folder or using a filter, but must click on the feature tree.

I'm guessing it just selects the faces created by the feature.  I've tested with Boss Extrudes, Cut-Extrudes and Boundary Bosses.  Didn't work on a surface extrude but pretty crazy hey?