Well, I wasn’t sure anymore whether it was working.
It wasn’t working and it’s true that I had told myself I needed to look into it.
I found a workaround (the simplest in my opinion)
I created a virtual button Virtual pushbutton Click Minus
I added it as a trigger in the scene Temperature Counter MINUS Ch6
I added the virtual pushbutton to the dashboard under the virtual thermostat
And it works, now I just have to do the same for the Click Plus.