Originally Posted by
Murexway
Not to answer for
EXDAC, but I flew Capt on the Mad Dog for 12 years and swapped legs if there was another qualified Capt on the crew list (rare), but never swapped seats. I did go to the lav a few times
but only in cruise and nobody sat in my seat. If the sequence was over 8 hrs flying or 14 hrs duty (very rare) we had a relief crew, but the seat exchange was done at the gate.
Seats have to be swapped in cruise for a long flight that requires a relief pilot.