[Feature Request] Groups : Query, Dynamic Groups, Automation Triggers

[Ltek]

I also posted this in the HA forums... https://community.home-assistant.io/t/make-groups-useful-they-lack-near-everything-needed/839860

Context:
Groups provide only 5% of what is needed for grouping and using entities in automation. To do complex automations using many items at once is 100x verbose and complicated without the below features.

Imagine you have over 400 entities and most require grouping to efficiently automate - otherwise you need have triggers and/or conditions for each entity (5, 10, even 20) in each automation, separately… now imagine needing to check the values of each in another automation. And that is the most basic situation.

Feature Requests:

1. Query to list all entities in a group, and the values of each so we can place the resultant list in a Card or something to visibly show status

2. Dynamic Groups : Rules based auto-update for groups. Dynamically refreshes membership when any device/entities is added or removed in the entire system. Rules would allow creation based on Area, Name, Tags, etc, etc

3. Triggers for group entity changes
   @petro made a similar request was posted 2 YEARS ago (WTH!) https://community.home-assistant.io/t/why-isnt-there-a-groups-entities-state-trigger/467179

my old system has all of these...