Popup spotify on Sonos

Hello! I would like to have a button that gives a popup with Spotify. This doesn’t work, but I don’t really see why not. Spotify is installed and does work via the sonos costum card. I’d also like it to automatically use certain sonos speakers. (I already have this one in a group). Does anyone have an idea how to get started?

Thank you!

Hello,

Not really sure to understand what does not work.

But to have a pop up. you can user browser mod.
https://github.com/thomasloven/hass-browser_mod

Sonos custom card or spotify in a browser mod pop up.