How to assign a certain cf to a player?

Let's say kobe has 5 different faces ranging from young to recent, how do i assign a different cf per year?

You'd have to manually change the face file that's being used. More info on installing mods can be found in the Tutorials section.

Thanks! Btw, do you happen to know how do I edit the global.iff? like if i want to add things to it.