Thank you both for your help. Two further questions arise, Allerleirauh how do I alter the cr2 file to get it to point to the new figure? And Anthony, if I manage to line up the vertexes exactly (ruining my eyes in the process) will what I am doing work, is it even possible? Would it be possible to use the grouping tool to spawn a head prop, withouth moving it, save it as a prop so it repositions exactly, export the prop, remap it, then replace the prop file in the library with the remapped one. Would this remapped prop then - when applied - line up exactly with the P4 Fem head allowing a "replace body part with prop" command to work withouth gaps in the mesh? Would this work? Where are the positioning co-ordinates stored in Poser for library props etc? Thanks