Hi - This photo makes it look like some of the armrests on the A350 premium select are movable, where you can push one side down to make your seat wider. Can anyone confirm if this is correct? Or am i just seeing an optical illusion in this photo? If some armrests retract down, do you know which ones? Is it all of the aisle seats on the outside and inside, including bulkhead? Any guidance is appreciated! Getting ready to book a trip and being a bigger guy, seat width is more important to me than leg room. Thanks!