I have the Poser patch for RDS from the Meta site - not sure whether it is the one you mention above? I placed it in the Extensions folder under Ray Dream directory. When I next booted up RDS, it asked me to locate the Poser extension. Since then, I've been able to open the PZ3's. You don't think I've have posing capability within RDS? Grr. The program DID seem to treat the whole figure as a single unit. I had hoped that this was due to my not knowing what to look for. I'll need to try some of the things you've mentioned, and get back to you. Thanks, Clint!

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Cage can be an opinionated jerk who posts without thinking.  He apologizes for this.  He's honestly not trying to be a turkeyhead.

Cage had some freebies, compatible with Poser 11 and below.  His Python scripts were saved at archive.org, along with the rest of the Morphography site, where they were hosted.