I second what Boni said. The majority of Poser users don't do Python scripting or editing files. This is a function that would be a major upgrade to many of us as adding layers for makeup, dirt, blood etc. Is built in for many other similar software.  I tried adding layers of such countless times and it requires major fiddling. Older pythons offered this functionality  and they are now obsolete, and will never be updated. I would be willing to pay for this, to be honest.