@thmry - Thomasloven recently helped me with this same challenge. The issue here is you cannot use the group domain with this card. In order to get this working you need to create a light group (someone else linked to the docs above my post). Here is what I added to my configuration.yaml in order to get slider-entity-row working.
light:
- platform: group
name: Great Room
entities:
- light.indoorkitchen_level
- light.dining_room_level
What wasn’t immediately clear from the documentation page is the resulting entity name. In my case, the entity name is light.great_room. From there, you use the entity name for the new light group as the entity for slider-entity-row. This will allow you to change the slider value for all of your grouped lights at once.
I’ve never realized that light entities in a group domain aren’t actually part of a light group. I’ve been using Home Assistant for almost a year now and used groups (group domain) to turn on and off multiple lights (in that specific group) which works fine.
I’m now actually using a light group and that makes it work with fold-entity-row, so thanks again!
Btw: this card used with your lovelace-gen.py tool is giving me so much opportunities to customize HA how I want ! You’re doing an awesome job !!!
edit: I might have spoken a bit to fast, the 2 plugins I mentionned work very well, but some issues occur when trying both at the same time (so it seems).
In lovelace-ui, after generation with your tool. The issue, it seems, is coming from the format -{entity:…, type:…}. Anyway, that’s not a deal breaker for me but I figured you might be interested in knowing this.
Another edit: How to fix → Use a vertical stack like so:
I’m using the card modder. Is it possible to remove the state ? Because I can see the state from te colour of the icon, so I do not need to see “on” or “of” …
Challenge accepted… although my recommended change has some errors in it. I should have known encasing words with special characters would have unintended results.
Is here any way to use a custom icon for items appearing on the pop-up card? I’ve tried defining the icon both in an input_boolean definition in configuration.yaml as well as in customize.yaml neither works (it displays no icon), versus leaving default where it displays the boolean icon.
Is it possible to define the popup card as a popup for multiple entities i.e. the same card appearing for them. I have achieved this using a long hand method of defining the card twice (one for each entity), just wondered if you would consider it as part of the standard definition.
@thomasloven - brilliant, thanks, I was over thinking in terms of the multiple entities and icons, as you say if defined as part of the card both issues are resolved;
@thomasloven Can your cards be included in the tracker card?
This is a long thread so apologies if I missed it, there seems to be no mention of it on GitHub.