Change text of "title" in header of entities card when toggled?

[tom_l]

The state of the header toggle is not accessible. It just toggles the state of all items in the card.

You could write a template that monitors the state of all the entities in the card and change the title using this:

100% Templatable Lovelace Configurations

Lovelace Templates I’ve gone and made a crazy card that allows you to pretty much template anything in Lovelace for your card configurations using any information available on the frontend; states, attributes, user, etc. Want state/attribute-based icons? DONE! Want dynamic stacks; vertical vs horizontal based on user? DONE! Want OR conditionals? DONE! The list is pretty much endless and I’m sure you all will come up with some crazy stuff. Be sure to share. Go nuts! Enjoy!