I have Pro Pack and when I try to export an obj that has been through uv mapper, to preserve the grouping when it opens in Bryce, the "include existing groups...." option is never available to me. I have tried clearing all the check boxes, then checking the "include existing groups.." box, but that does not work either. I recently went to do Dr. Geep's "Robox" tut which calls for exporting the mannequin with this option checked, but I could not get Poser to do it. What is the secret folks? Somebody has to know what it is.