current state allow for multiple entities

[turboc1208]

I'm sure this has been requested before, but all I have found is reference to using multiple current state requests. When listening for a state change event, we can listen for a change from multiple entities. I want that same capability from "current state". It should include an option to have them treated as an "and or an or and maybe even an exclusive or". It would also be nice to be able to include areas, or labels as well. Then I could check the current state of all lights or all lights in the outdoor area without having to list them all and keep remembering to update the flow ever time I add a new switch or light.