Originally Posted by
xcitation
I think Takata and others suggested that PF was PIC so the left seat FO could not take over in such a manner. It has been suggested that he might have liked to based on wording and dual input.
I think it's been described here before.... There
is a button on the sidestick that - when held down for a given time - transfers control to that side stick.
The function is normally there to either transfer control, or in the case of PF incapacitation.
No need to change seats.