hello
I have a F422.
I have a Legrand home screen who pilote the bulgar alarm => arm & disarm & zone by zone.
Ok, with my Solution (Sdomotica) you can arm totally, arm mixed zone , disarm, and use Home Assistant alarm panel. If need you more info please send me PM.
Bye
Sandro
If you are interested I made a fork of MyHome by anotherjulien, you can find it here