Imported 3D object, can't color individual parts

[scottmccoll]

I downloaded a 3D model to test out the photoshop 3D rendering capabilities. The model is separated into a few objects in the 3D panel. But when I go to change the texture of one they all change. I can't find an option to ungroup them. The solution is probably right in front of me but any help would be appreciated, thanks.

[JJMack]

A screen capture showing the model open in photoshop that shows the 3d panel, layer panel, and properties paneld woul be helpful

[scottmccoll]