If you load the Genesis “Basic female” or “Basic male” as a starting point,. then you can apply Victoria 4 or Michael 4 skin textures to those figures.
As all genesis shapes can be dialed in,. you have the ability to change the Basic male or female to whatever shape you want , but still use V4 or M4 texture sets.
Carrara doesn’t have (Live) swapping of UV set’s, so you really need to start out by using the figure you need,.. for the skin textures you want to use.
V5, or M5, Gorilla, Troll etc, all use their own UV sets when loaded into the scene.
You can load DUF format shaders. poses, characters or scenes created in DS 4 or 4.5 ... but many shaders and poses now show up in the Smart content,. (if you’ve downloaded the latest file updates) or if the product is new, it should come in different versions,..
Core, (for DS 4.5 and Carrara)
Legacy (for DS3)
Poser companion (for Poser or Carrara)
Hope it helps