When you unwrap any model, it is very convenient to pack certain islands into groups, and then automatically pack these groups as a single island. The problem is that when packing the groups I created, the islands in these groups are still split. Groups do not work as single islands when packing (very rarely does it work). For example, I have an island with free space inside. I want to conveniently place the other Islands there and group them so that when packing, this group is Packed as one island. I can't do this! Or I want to overlay the same islands on top of each other, group them so that when packing this group with the rest of the islands, the group doesn't break up into a lot of islands that I've overlaid.
