Many thanks. I suspected that the solution would be in a template, but none of my experiments worked. I am trying to learn more about Home Assistant, stumbling along as I go. Your tip is a grok moment for me. It’s a micro-grok, but to this newbie, it was like turning on the light.
The slider almost works as expected. Good enough for my purposes, but I want to learn more. Is there a mechanism for getting the dimmer switch status to effect the slider? If I manually change the brightness at the switch, is there a way to make the slider show the dimming level? (There is a Poll State node in Node-Red that I can feed back into the Slider Widget).
I have no clue why the slider would disappear, however I have no clue what hide_entity: True does, tho’ it sounds like it might cause the issue. The state triggers should trigger when the state changes so they should work fine, tho’ I’m having problems with input_booleans which don’t seem to follow this rule