When the seat is fully rearward, for forward motion, holding the lever up, move the "seat back" forward.
When the seat is mid range, if you lift the lever the seat will start to move backwards until you tilt the "seat back" forward, where it will change direction.
Whilst holding the lever up when the seat is mid range, flopping the "seat back" forwards or backwards, will change the direction of travel.
Man, the switch is just a button some copper a spring and a yellow wire.
Slide the boot plastic sideways and get on in there.
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20,000 leagues under the sea diving to adventure
in a silent world with my ceiling the waves...Emile