So, say, my Subtools are.... (all lined up correctly) Mesh A HighRes Mesh A LowPoly Mesh B HighRes Mesh B Lowpoly Mesh C HighRes Mesh C LowPoly Then Transpose, and mask off Bs and Cs while I move As. Then do the same when I move Bs and Cs ? That could work.
I dont think you can. The explode button is a temporary thing in zbrush as far as I know. The advantage of exporting your hipoly from zbrush is that xnormal sees it for baking without the mesh having to be open. Exploding a decimated mesh in your retopo app works really well for one time bakes but it means having to use…