That is amazing! As a retired "programmer/systems engineer/whatever title they came up with" (I wrote code, ya ken?), I'm quite impressed, most especially with the organizaion and layout of your code, and -- that it's a complete, all-in-one-place solution. After the earlier explanation about Poser Units, I was thinking about an invisible object, placed at height of "1" in the current units. The height to be measured in script will yield the conversion ratio directly. But it requires a cooperating "known" object. If I placed the object in the my library, loaded it from script, measured the height, then deleted the object, all in script, then it would be ALMOST an all-in-one-place solution, but I like yours better because it IS an all-in-one-solution...

Thank you!