A different take on designing a Lovelace UI

this is more of a browser mod question than a dashboard question, you might get more help if you ask on 🔹 Browser_mod - turn your browser into a controllable device, and a media_player

looks like this is what you are after

the service you want to call is browser_mod.popup not browser_mod.navigate, you will need to pass the browser id, I don’t think you can pass in the full popup yaml to the automation, just copy and past the content section into the automation