For Feats beyond the Core Rulebook, ask and they will be looked on, and then decided if they are allowed or not, and then placed on the allowed or disallowed feat list.
Ascendant campaigns can view previous versions of their pages, see what has changed (and who did it), and even restore old versions. It's like having a rewind button for your campaign.
We've already been saving your edits, so if you
you will have instant access to your previous versions. Plus, you get a 15-day free trial, so there's nothing to lose.