creating realistic fur texture with Fast&Fur (Vray in cinema 4D) on a bird - repost

Hello Cinema4D users, I've been modeling / animating / texturing a bird. However, I can't seem to get the fast&fur tool with Vray to do the things I want to. I want to select a part of the bird (which i've got a selection of) and put on some fur. Please, im looking for an intermediate Vray C4D user to help me out with this quick issue. (FAST) THANKS