Rotate Part in Assembly

Can anyone tell me if it is possible to free rotate an unconstrained part within an asembly. I know I used to be able to do this in Pro/E but can't recall if it is possible in SW. I would like to be able to move and rotate a part that I am inserting into my assembly to place it in an approximate location so I can get an idea of how it will fit. If this can be done with a 3D controller like the Space Navagator that would be even better. Any tips would be appreciated.

SolidworksAssemblies