O.K., I don't know of any way to do that. The Max Habaware importer will break out the groups into parts, for one thing, even if you export the mesh from the original unimesh OBJ file. However, if you work carefully, you can modify without opening the seams, that is how I made all my figures (Glamorous Vickie, etc.) IV and GV didn't get back to being unimesh until Dodger convered them for me. Once in awhile you have to fix the odd seam, but usally you can do it.