A couple of questions about transferring points between spouses.

If I want to transfer points from my wife's Amex account to mine (I do most of the vacation planning), does she need to add me as an authorized user to her account or is it possible to do if she is an authorized user on my Amex (points earning) account?

Points across your accounts are supposed to automatically pool - if she is an authorized user on my Business Plus account does that count as one of her accounts that points pool into? Or are they only accounts where she is the primary owner?

Thanks!