Originally Posted by
plasticman
Sorry to resurrect this one, but I didn't see an answer here or through Search.
So ... is there anywhere online that you can see/retrieve/change CX seat assignments for bookings done through a TA?
Never thought I would step back and say I appreciate the functionality of aa.com

No. Your TA is the only person who can do all of the above - including seat changes prior to departure.
You can view your reservations booked through any other source ONLY if you have put in an ASIAMILES/MPC number on cathaypacific.com, but you can't do any changes to it... Except do advance on-line check in, by which you can change your seat during the process but once only.