I suppose this is idle curiosity, since I clearly do not have the skill set to actually answer the questions you are asking. However, as I understand what you are trying to accomplish with Brad, you want to introduce the base Brad figure without genitals, but include a pose that will insert an alternate and fully endowed (and rigged) hip geometry. This will save the resources, that the extra geometry requires, for those who do not need genitals, but allow genitals to be added without the problems that a conforming figure causes.

By extension, now that you have this insertion pose working very well, can the process be used to insert substitute geometry for clothing, saving the overhead of additional rigging and covered mesh, and avoiding the problems of conforming clothing? I see in the “Finally” thread that you have accomplished this with the added benefit that the alternate clothing mesh uses less polys than the original figure.

So, must the base figure, neutered Brad, have the genital’s material zones in order for them to be there when the alternate hip geometry is inserted and welded in place? Or, can those material zones be a part of the inserted and welded-in geometry, but not the original? If you can insert geometry for Brad’s genitals that has its own material zones, how is this different from adding pants with buttons that have their own material zone?

If the original figure must have the material zones to begin with, can material zones be included with the base figure that have no actual groups, but be assigned a group by the insertion pose? If this can be done, does it require a prohibitive amount of resource overhead in the CR2 to include multiple unassigned material zones? It almost seems like having extra channels in a figure into which morphs can be injected. The question would then become how many such material groups to add to the base figure?

Another thought, can python scripts be called from a pose? If they can, can python scripts insert/create material zones? Or, can a python script, run from the script menu, create material groups? Can that script call the insertion pose, or insert the geometry, and then group the needed polys to make the new material zones?

lmk

Probably edited for spelling, grammer, punctuation, or typos.