Is Tp AP TR Tp Ap Tr TP an option? That would be ideal
The rotations typically on a 7 night cruise are 1231231. In this order, with these choices:
Tiana's, Animator's, Triton's.
Animator's, Triton's, Tiana's
Triton's, Tiana's, Animator's
Hopefully, pirate night is night 4 for you. Then you would request that rotation that puts you in Tianas on nights 1, 4, & 6.
Of course, this assumes the rotations for the 7 night Mexican Rivera is 1231231. If the rotation winds up being, say 1231223, you'd want a rotation that puts you in Tianas on nights 2, 5, & 6 (and there's no such thing).
Am I correct you're traveling Concierge? If so, contact the Concierge shoreside and ask them what the rotation is and what night is pirate night, to figure this out.