switches from 4 to 8 way mode from the top of the panel!To switch: Pull out the stick against the spring pressure, continue pulling while rotating, until the mechanism engages, then turn anticlockwise for 8-way, or clockwise for 4-way. The stick clicks into position when turned 45 degrees. The mechanism actually rotates an internal restrictor plate and also rotates the microswitch actuator for a perfect 4-8 way transition.
Pull up hard enough and rotate to feel click then turn. The right most pic shows where black slit if not in sync with silver line bar. The first pic shows it lined up.