Hey there,
i don't really know if this is something some of you could/would use, but i wrote a little ZScript that, if your model has UV's, assigns a random color the every subtool, then exports a texture for you to use with dDo or Quixel Suite or something.
Maybe this could be helpful for someone... Probably not, but maybe
Here's the link to the script... Installation Manual is included
https://www.dropbox.com/s/z428f45v89hrfv1/MaskPlug.rar
Here are two screens of the Plugin and the Interface:
Hope you like it!
Cheers