Is there any possibility of a group dimmer custom control?

[mihalski]

Is there any possibility of a group dimmer custom control?

[andrey-git]

Handing this in Custom UI would be complicated.

• Currently HA only supports custom state-cards, not custom cards.
• The functionality is also not present in the more-info window.
  • What should the non-dimmable switches do when a group slider is moved?
  • What should the slider show if the slights have different value?

I think the best solution for this is a custom backend component.
Or maybe a new light platform that controls and optionally hides other lights.

[andrey-git]

Actually I see that more-info already has this:
If all group members are of the same domains it shows controls for the first member and changing them affects all members.

[joshluster]

Because the more-info already has this, is this something that can be implemented?

[andrey-git]

Like I allow a single slider on a light state-card to control brightness - you would like a single slider on a group state-card to control brightness of all group members?

[joshluster]

Correct, I just discovered that I can have lights I have grouped in hue show up as a light instead of a group.. But for rooms that have multiple lights from different sources this option is still available in the more info area.

[willscottuk]

Just wanted to say that I'd love to see this as well. While some of my automations change individual bulbs, 95%+ of manual changes would be a room at a time, so my main frontend view has room-by-room groups of lights.

It'd be great to replace the simple switches with dimmers if at all possible please!

(Screenshot for reference - each of those switches represents a group of lights)

[andrey-git]

I might be able to implement this after home-assistant/core#11548 lands

[Mariusthvdb]

@willscottuk hi,
just to be in the loop here, what happens when you click these groups and get a more-info card?
don't you have a slider for the group there?
I was happily surprised to see that happen in my setup