It would be useful if we could prefix a variable with say
_myVar
and have it be immune to Delete Variable All or add some form of new delete variable that deletes all but the special prefixed ones.
Sure its a niche case but It would open up the possibility to cache fetched data all self contained within a single button without needing to delete multiple specific variables at the start/end of every button or without needing to use another button to save said cache