Yes. It's a very complex model with LOTS of faces and areas and it would take a long time to select each component separately. Most, are already identified by materials. There is no assign group or anyway that I can see to make the materials "hilighted" so that you could then make them a group.

Windows 10 - Poser Pro 2012 - 64Bit - 24GB RAM - 4 x 3.40 GHZ processor