One of the problems that the unique channels and geometry swapping was originally the only option for was being able to hide props or limbs by dialling in a null geometry variant. Once Poser supported keyframable visibility for actors, that use was less viable, and as FVerbaas helpfully mentioned, geometry swapping is a no-no with Unimesh figures and hence subdivision is out (though only because it's tied to unimesh figures - I'm sure anything could be subdivided, but Poser currently prevents that)

---

My ShareCG Stuff

Verbosity: Profusely promulgating Graham's number epics of complete and utter verbiage by the metric monkey barrel.