Hi 
If you mean for genesis,. then you need to load the base figure for the textures you want to use,. Carrara doesn’t have the same ability to Swap the UV set on a base genesis figure to,...V5 or M5 or Gorilla.
As far as I’m aware,.. Daz Studio is the only program which uses the concept of being able to swap the UV layout of an object already loaded into a scene.
Carrara supports all the different UV layouts for Genesis, but if you want to use M5 or V5 texture’s, then you need to start with either of those models.
