At the moment, if a sheet of polygons is seen from the wrong side (i.e. with the corners of each face seen clockwise), it displays in the final render, but not in the quick rough render that is made automatically while posing. It would help if there was an option to give any particular material the property "always display when seen from either side". That would have been useful e.g. for the sails of a galleon model that I saw a while ago on Poser; each sail was an open sheet of polygons with loose edges all round, and the corners of each polygon displayed anticlockwise (= visible) when seen from port and clockwise (= invisible) when seen from starboard, or something like that. When I import an .OBJ file as a prop, it would be useful of Poser could give me the option to have the geometry as an objFile linked in instead of embedded, and also of it would let the user choose the name and directory for that file.