I'm trying to pack a mesh with overlapped UVs. I UVed all of the baked objects, then mirrored / duplicated the stuff I need to be overlapped. Now I want to use the packing tool, but whatever I do, it breaks the overlapping. Is there a way to lock them together? It's not a case of del half the mesh, pack, then mirror. I have screws and stuff small that are located in various places but they are all should be overlapping (baked off of one screw, bolt etc)