Combine Tap-Action with Conditional card method to show/hide other cards?

Physically separated on the page. Using the terminology that the UI uses… within a View it would be showing/hiding a different ‘section’ or ‘card’

I was hoping there was a way to do this without using requiring an Entity, like state-switch does.

IMO we create too many entities (which have global scope) for small things which are for momentary, do not need any persistence – they only need local scope. Helper entities are difficult to keep track of, and harm performance for HA’s web page rendering; specially when using templates/filters/etc.