a) depending on the engine i think you can to a point, and b) you can export the pieces and build them back in-engine once they're finalized like this link:
but i'm just using it for a character dress up flip book because i'm tired of hiding and unhiding meshes
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but i'm just using it for a character dress up flip book because i'm tired of hiding and unhiding meshes
the geometries are all separate objects and the seams between get bevel weight applied to them and welded together
the subdiv and solidify get added later!
and thank you!! trying to figure out how to do the UVs in a consistent manner is gonna be interesting