by a.g. » Sat Dec 12, 2015 8:00 pm
Regarding flags, I don't think that will work really. However it may be technically feasible to allow anyone to adapt a piece of clothing to a small change in targets. Currently the problem is that the manual vertex group assignment is lost when exporting an mhclo file, and the only thing left is the computed mapping going directly between base mesh and clothing vertices. This means it's hard to import mhclo back in a way that allows using the regular export process; however if the target didn't change significantly, that old mapping may still be good enough to reuse in the new mhclo file, so only the actual relative coordinate values need to be recomputed.
MakeClothes will only need a way to load a custom target file as human in addition to the standard 4, and a new reexport button similar to the one for changing the UVs. You'd load both targets as humans, import clothing using Test Clothes on the old one, and then reexport mhclo with the new target.