Yes, opening the .PZ3, .CR2, etc, in a text editor and recognizing the part/texture references would work, but that's tough.

More proper recognizing things from in the MAterial Room, would also probably be most useful.

But, by clicking on a file in P3DO Explorer, you can view all of the files/address(Geometries, textures, props.

If you were in Pbooost II, you could clik on the .CR2, like Windows Explorer, then actually move it and all of it's required Poser files, together...That is hugee pain with just Poser.