Ahh, but the way Poser interprets it, is that... g Body f 1 2 3 4 <-- belongs to group 'Body' g Body Arm f 4 5 6 7 <-- belongs to both 'Body' AND 'Arm' groups g Body Arm Hand f 7 8 9 10 <-- belongs to 'Body', 'Arm' AND 'Hand' groups ...in fact, Poser DOES allow a poly to belong to both a 'head' and a 'buttox' group at the same time (logical naming/positions of said groupings aside)... this is a point I was wrong on in the past. You can verify the above using the grouping tool... create a new group, select a poly or two in the head and add them to the group, then select a few in the buttocks and add them to the same group. The polys you put in that group will 'also' still be linked to the head and buttocks groups, as well as being in the new group you created (similar to UV Mapper regions). I might note that this is (going to be) a bear to program for....

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