I’m not using anything fancy in the dashboard for this. I just have an entities card that has all four fans in the house grouped together. If I want to control the speed instead of just on/off I just click the fan and then get the speed slider. The light is on a separate entities card along with the rest of the lights for that floor.
Clicking the fan brings up this:
I’ve seen some nice custom examples though, like some of the ones on this thread - I would take a look if you want something more advanced
