PH4, PH4-Mini are currently not supported in BRD-Type? How can i change it?

ArduPlane Plane 3.9
1

Hello,

I have a PH4-Mini.
Per default, there was PX4 onbord.
I want to use arduplane.
So i wrote the firmware 3.9.11 on the PH4-mini.
I belief, i wrote the bootloader also new.

But PH4-mini tell me, BRD-Type not known.
Baro not recognize.

And if i go to the Parameters and choose BRD-TYPE, i see unknown:24 and i can not choose a type like PH4 or PH4-Mini, because there is no option allredy.

So how can i add the option 24 for BRD-TYPE?