Ethanidas

Is there a way to reset your crews rankings in jobs? To better choose what they are a master of, or a way to be master in more than one rank?

Hi im new, I just wanted to add on to this that if there is no way to get master in more than one rank, at least a way to reset their skills would be nice. But all in all, being able to get master in more than one rank would be best if possible. Thank you.