The first option simply uses the correct bodypart names (lThigh, lShin etc) instead of figure1_1 (or whatever). This is particularly useful if you've created an item of clothing and want to save the OBJ file with the correct P4 names in place. Use exact... means exactly that, it will use the exact names without spaces. Include Figure names... what this does is give you the figure name. So, if you rename one female figure Wilma, and another Jane, the names that show up (in something like Bryce) are Wilma_1, Wilma_2 etc for the various bodyparts. Include existing groups... I don't know, this isn't something I've used. Weld body part Seams... this welds the parts together so, instead of several parts making up the mesh, it welds everything into one part. As Morph Target.... again, not something I've used, but I guess it exports a morph target. Hope this helps Paul