Sorry for a relative noob question here. I booked two tix in J using Avios for ITM-TPE. I booked a few weeks ago - flight is in about ten days. Haven't been able to figure out how to select seats. I'm not a total moron - I've booked F award tix on EY and EK and J on CX through American and Alaska and I've been able to find the proper record locator to pick seats. Am I missing something or is this not possible?