WTH Trigger automation by label

[clintm (Clint)]

Your WTH is very similar to mine tho more popular.

WTH Why Can't I trigger on Label State Change (label as shorthand for all entities with label)

It would be nice to trigger on state change on a set of entities defined by a label or category. Currently this is only possible by duplicating the information of which entities have which labels. I understand this might be difficult to implement but it should make automations more DRY. I particularly want this sensor templates that depend on labels and have a different trigger but currently I don’t believe they can react to state changes of the labels.