I've been respecing just using the console and not cheating.
I really regret picking "Martial Training" for my minotaur knight.. dunno what I was thinking.. Skull Hunter seems WAY better.
I tried using removeTrait("martial_training") but it doesn't do anything. It looks like you can only use this console command to add/remove traits that are acquires through skills and not the ones you pick at the beginning.
Still.. I assume there must be a different command to alter the skills you pick at the beginning. Do you know what it is by any chance?
