Originally Posted by
Knobbgb
I was more interested to look at the seat plan a few hours before the flight to get an idea how busy it was and only move if there were other rows with an empty middle seat and mine wasn't. That's rare these days anyway.
You can at least emulate a new booking, choose comfort flex fare, get all the way to seat choice and see the actual map. Doesn't help to change the seat in your boarding pass but gives you an idea where it would probably be possible to move once boarding is completed. But this might not work in the last 1 or 2 hours before the flight.