KNX Thermostat On/Off

KNX Thermostats don’t seem to have an On/Off object to connect, we are using Daikin Intesis KNX module to control a daikin heatpump, the on/off object is not present in the KNX integration, can we please add this in so we don’t need to create an aditional binary switch in order to turn the aircon off and on.

Thanks

Here are the objects:

Also, we would like to also, this usit uses datapoint 20.105, it would be great to be able to select which modes get exposed, (Ie in this case, 0-Auto, 1-Heat, 3-Cool, 9-Fan, and 14-Dry). It would also bew handy to have it work with the just the simple binary heat cool object, so if either one of these has its linking addresses in they would show as part of the thermostat.

Or is there a way to make my own custom KNX integration that has all of these in it?