A good idea, but I can't get it to work if the prop has morphs and binary morphs are on. If I save the prop temporary and reload it, a new pmd file is created and referenced, so I would have to keep it permanently. (Similar holds for the menu command "Duplicate", which for some reason references to a temporary PMD file in PoserUndoCache that is deleted when the scene is closed.) If I would rebuild the prop from the geometry and properties of the original prop, the morphs would not reuse the existing PMD file, but are saved with the scene. (Not to mention that this approach is a lot of work.)

The only Poser Python method to deal with PMD files seems to be scene.MorphFiles() that lists all used PMD files, which is pretty useless.
Well, since only binary morphs are a problem and most Poser users have turned them off, I may copy the props anyway.

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