It would be nice if those making models, especially smart props or things that will conform to a figure, could, where possible, remember to pay attention to the names given to materials. It makes no difference as long as the figure is used within Poser, but many people like to export to other programs, and that is where the trouble starts. Programs like Grouper act on the material names, and if every item has its material called "Material_1" they will all be assumed to be the same object. Blank material names (which I have seen) cause other problems, including software crashes.