Calculating target temperature for climate


I have an underfloor heating which is controlled by a txm646R.

Unfortunately I can only configure the target temperate from +3 to -3 degrees according to the mode.

For example if the mode is “comfort” which is 22° I can switch to any value from 19 to 25 degrees.

Unfortunately it does not provide a calculated target temperature. So when I switch the knx bus only receives the setpoint. What I need to do now is to calculate my target temperature to show it on the climate card.

Rigth now my climate card looks like this:

Screenshot 2023-09-29 124121

It shows the mode “Komfort”, the actual room temperature and the setpoint. I want the calculated target temperature to be displayed instead of the setpoint.

Is there any possibility?