How to jump into a gunner's seat

[Woke Up Dead]

Originally Posted by KG26_Alpha

The default keys are toggle A to switch to AI/Human
And toggle A+Shift to turn off AI completely and back on.

The last settings useful if you are flying an aircraft with gunners in enemy territory and you want to be stealthy,
it disables them from firing completely whilst your in the pilot seat.

That last toggle sounds very useful, but I can't find it in my list of controls. It's in the stock version of the game?