MadYuri... But what about the example of different "runtimes" each containing victoria-based characters? A script couldn't know that the CR2 in question uses an OBJ that is also used by other CR2s that are going to be moved to different Runtimes. It could prompt me about whether to move or copy every OBJ, but that would take ages, and again I'd often not be sure. Or it could just copy, taking up huge amounts of disk space and nothing could be deleted from Geometries until the entire sorting process was done. (I thought of writing a script myself, but flaws occurred to me.) Also (at least in Poser Pro Pack) Runtime contains memory dots, Reflection Maps which are called by many library files, and Python scripts. I wouldn't want to change to a new Runtime just so that I could use different content, and in so doing lose the use of my Python scripts. That'd be silly. (I'm just giving myself a headache.) Phoenix