Group: Optional custom actions / state templates

[Alsatian67]

Integration name

Group

Link to integration documentation on our website

https://www.home-assistant.io/integrations/group/

Describe the enhancement

The group integration let the user define groups of entities of the same domain.
For the domains I have tested:

• A group action dispatch the same action on each member entity.
  => This sequence of actions could be optionaly replaced with a custom action
• The integration calculate the state of the group entity depending on its members.
  => The logic to provide the group state could be optionaly replaced with a state template

For mixed usage both could be customizable.

Use cases

I have a group of covers, individually provided by the knx integration.
If I define a "group" cover with these covers as member,
the action group open, will run the open action for each member individually.
The knx integration will send a telegram on the knx bus for each member, the cover will start sequentially.

It would be nice to replace this group "open" action with a custom action/script.
In the custom script I will send a unique knx telegram (and all the covers are configurated to open simultaneously if this telegram is sent). All the covers will start synchronously.

But I till want to use the group integration to calculate the group state.

Anything else?

No response

[github-actions[bot]]

🏷️ I've automatically added the integration: group label to help categorize this feature request.