Is there a way to group uv islands so that the Pack Islands tool would pack the groups instead of the islands. The reason for this is I want to have UV islands from one geometry or cloned objects next to each other. The problem is the way Pack Islands tool handles the operation and shuffles the UV layout so I have to manually fix everything every time I pack something.
Note that the geometry is in a single object and I would prefer to not split it into multiple objects. Also worth noting is that none of the UVs are overlapping.