I just booked AM redemption flights for 7 family members. Only my wife and I have (non-CX) OW status (we’re sitting in Y).
F: can mark seats. 2A needed to be called in (have to acknowledge it is a bassinet seat).
J 77A: cannot mark row 11 even after calling in.
J 33E: can mark any available seat
PE: can mark any available seat
Y (me, wife, two non-status): wife and I can mark any available seat including front row extra legroom. Cannot mark for non-status in our booking.