WTH is the no option for Setting new variables/Fields in the Script UI Editor

fields and variables are part of almost every of my scripts.
As there are well documented, it should also be possible to add and/or edit them in the new UI-Editor

I tried to import some scripts via the all new migrate Function (well done :wink: btw.) but the variables and fields don’t show up in the UI.

Duplicate → WTH are fields\variables (in Scripts/Automations) aren't included in the UI?