Hey @iCFO (again
)
Sorry, I’m not fully understanding what you are trying to achieve here - why use a configuration if you want the boolean to be false all the time? There is the Variable Creator – KNIME Hub for constant flow varaibles 

If you connect that to the last node of your workflow that you want to have executed, you have that false boolean available.
But this is related to your other topic, right? So maybe your case is resolved with the active branch inverter already?
If not, please let me know!
Cheers,
Lukas