Most of the buttons do not work.
I am using up down left right button on the stick. It is working OK now. You do see the little arrow move and the plane seems to respond appropriately. You have to make sure you save the settings for a particular plane (each one separately).
but the manual describes these specific light switches
I stand corrected. A lot of the buttons do work. I am not going to do a list but the panel lights on the left work as does the center panel. Recognition lights do not (beacon?). Engine fuel, mixture,starter and cowl flaps work. Turbo boost (sound interesting) no. Bomb bay works. Crucially you cannot adjust the altimeter for baro pressure. Look they fixed the trim so probably the rest will come in… it flies like a glider with a lot of lift and slow stall speed… they got that right.
Remind me to read the manual 