Is there a way in lovelace to make a card that shows all the items in a domain ( e.g. lights / switchs )
I think it is possible to using the monster card but I dont really want to loose the lovelace editor by setting up mode:yaml. Which I believe you have to do to use a custom card.
You don’t have to use mode-yaml, you can use the ‘raw-config-editor’ in storage mode to add custom cards and such, so the monster card is the solution to your problem.