Ok, I'm trying to create a second UV Map in 3D Coat that effects the same geometry, but for Unreal Engine LightMap.  Apparently in 3D Coat I can only have a single polygon on one UV Set, and not another.  Thus, I can't create a lightmap for Unreal using 3D Coat.  Any solution to this?  Yes I know I can do it in a third party program like 3D Max, but I'm looking to do it in 3D Coat.    Thanks