button assignment for thrustmaster Warthog China Hat?

Does anyone know why there are no "assigned" button numbers for the china hat and the similar control to the left of button 1 on the right throttle?

Thrustmaster lists a "number assignment" for all of the buttons and 4 way switches,  yet these two are blank - they don't give them any number at all - just a bunch of arrows indicating the circular motion of the switch itself. .

I wanted to make up charts when I set up aircraft - and wondered how they distinguish the China Hat - it has to be identified on a list some how???

I'm still relatively new to this so excuse me if the answer is obvious somewhere.

Any clues?

WG