Allow/add unavailable/availabillity for KNX Devices

Allow KNX Devices to be available or unavailable.

I have lots of saisonal-Devices, for example Pool Devices, Lawnmover, etc.

For Safety Reasons i’d like to not ownly lock them (see Lock entity for KNX) wia knx which might get lost on a power failure during summer/winter.
I’d like to mark them as unavailable in HA so everyone can see that he should not touch/change this.

I’d suggest MQTT like stucture where you can define

availability

Usin this I can use the LOCK KNX GA to set it available/unavailable, or use any other entity like “pool in winter-mode” if prefered.