Create an increment button

Dear all
I try to make an increase button but I am struggling ...
I would like to have a push button. Whenever I push the button a predefined variable should increment its value by 1. Example variable value is 5. If I push the button variable value is 6 ... and so on.

Any tip would be highly appreciated. :slight_smile:

Check out "scripting.json" here, it covers this exact case.