I have imported 2 separate meshes for per pixel painting and thus I have 2 surface materials and 2 paint objects, however they all share the same layers in paint room. Is this intended? I find it confusing when I open up the texture in Photoshop and all the layers from the other object are there and empty, but i can't delete them since then the paint information will disappear in 3d coat upon re-importing the texture. It would be nice to have a separate set of paint layers per surface material.