Thx for your reply mate, i will check that

Hello guys,
I'm new with this, for now i just made some retexture mods it's pretty easy so it's cool ! But i would like to make or edit for example the big trevor beard or his haircuts.

If i want to make the beard smaller or something else i've no idea of what i need for that.

So if someone have time for explain, would be appreciated.

And sorry if my english is wrong.