Are field settings controllable or just reported?

[quxyzzy]

Is it possible to change the field settings exposed via the P1P2MQTT bridge, or are they read-only?

I have a Daikin FDYAN140AV1 which was installed with just a Polyaire Airtouch 5 tablet and not the original Daikin wall controller.
I've recently learned static pressure and demand / power limits can be adjusted with the original controller but these settings aren't accessible via the AirTouch system. I had originally considered hooking up a relay to the DRED terminals to limit power, but came across this project and am hoping I can access not only the power demand settings, but the field settings for static pressure, to reduce the minimum speed on the blower.