I know what I'm looking for... I just can't work out the terms I need to find it.
On a joystick, I want a button/switch to mount on/in the joystick board, which allows me to invert an axis. Under normal operation, feed 1 goes to A and 2 goes to B. When "switched" feed 1 should go to B and 2 should go to A. Hence effective inverting the axis.
But I can't work out the terminology I need for that kind of switch. Any ideas please?