Establish and save named polygroups?

Greetings Wrap3 community.

Perhaps this is obvious or covered elsewhere, but I can seem to find it.
I am working on a project where I’m planning on using Wrap extensively to conform an existing basemesh to a variety of new sculpts. (Pretty typcical use-case scenario)

However, I’d like to setup polygroups so I can hide/isolate areas for wrapping, selecting, mixing, etc.

I cant for the life of me figure out how to do this.
I’ve got a similar thing going with materials, but its not quite the same thing.

Any help or guidance would be appreciated.

How do I make, save, and re-load a mesh with polygroups in Wrap3!?