F1 23 custom UDP actions

Hi, i have been messing with UDP telemetry, and now I saw 12 keybindings for UDP custom actions.

Anyone knows how to configure them?

Where I can get info about them? 

I have tries googling, but nothing relevante shows, only that It was included on f1 22, and saying this

"Custom actions hace been added to button array...."

But nothing about how to configure three custom actions.

Any help or clue will be very appreciated

Thanks