I still don’t understand what you mean lol (sorry I barely slept anything last night). Are you talking about “MetaHuman Extra Tools” or “MetaHuman Conform Topology”?
MetaHuman Conform Topology is a simple package released by Epic wich includes sample MetaHuman geometry for you to use however you want.
https://www.fab.com/listings/98f7b49d-f5dc-45c4-b590-52dbb4f951c0
MetaHuman Extra Tools is a Maya plugin that I released. It complements Epic’s own “MetaHuman for Maya” plugin.
With MetaHuman Extra Tools you can edit your MetaHumans as combined meshes in whatever application you choose, and the plugin will figure out the correct joints placement, pose fixing, etc, generating new DNA that you can use to update your MetaHuman in MetaHuman Creator. It will work better than the “Conform from template” option from MetaHuman Creator.
https://www.artstation.com/marketplace/p/pR97n/metahuman-extra-tools
or
https://www.fab.com/listings/22f90398-c29e-4b74-a80a-9c5b5ae19d47