Quote - I suspect you could do this without actually modifying the geometry, allowing morphs to keep working.  V4's breast movement is all magnets anyway - the dials that look like morphs are actually ERC dials that move magnets

NO, I never was able to rotate down the nipple with magnets in any figure, rotate up works, but rotate down never.
This is what just I was trying to do when I did my discovering.
As I never was able to make a nipple point down with magnets, I took a different approach.
My idea was to export the chest, create a new figure with nipples, rotate down the nipple and then export the chest as a new morph target and what discovered was something much better than a morph target with the nipple pointing down.

Stupidity also evolves!