Of course, as Poser is extensible with Python, it might be reasonable just to expect a "pro" (if the definition of that extends to being able to write some simple Python macros) to quickly write a bit of bespoke code, for their own specific use-case, I guess?

...and as Zanzo notes, there may well be an off-the-shelf plugin already available, from the likes of Semidieu's Shaderworks range?