Poser does infact, in my experience ingore secondary, tertiary, and so on group assignment for a polygon set. As a matter of fact, let's say you label a group as followed: g head lips If you did that for let's say, the lips in the P4Male, and saved a new cr2 pointing to the new geometry, you would notice that the head itself is still intact, and should (I believe) handle morphs just fine. However, you will also notice when clicking on the head and opening the group tool that a subgroup called lips exists.