Blueprint: Check for Optional Values

Configuration Blueprints
1

Hello

I am creating a complexer blueprint. When the window is open I get notifications like on the TV, on the phone or on a speaker. Depending on how long the window is open and which window. For example for a big central window, I want to notify more offenisve, instead of a small window in the basement. The blueprint should be always the same.

How can I check in the blue print, if an input variable is not selected? Check for optional values?

Thanks
Gilbert

2

You will have to share some of your code for me to help.