Hi Alex,
Thats a real bummer (currently) i know they have lots of work on so will just have to wait, I have assigned a rocker switch on another panel but its not how i want it.
I have managed to get the other items working (Nav, Taxi etc) by connecting to Spad and and saitec switch panel (Disasembled) i just use the circuit board, i cant see any reason of not assigning it thru an arduino or Bodnar board. as both compatible with spad/msfs2020. there is a guy that has done it with the arduino on youtube, ill dig you the link if you want. but it wont sort out our brakes. haha
Regards
Paul