I’m sorry, but your English doesn’t make much sense. Perhaps if you were to post in your original language, we could use Google Translate to get what you mean.
As an example, Sonos needs no ‘light’. Nor do I understand what you mean by a ‘key’ in the controller.
You may also be best served to call Sonos Support directly to discuss it. They likely can provide native language support.
When you speak directly to the phone folks, they have tools at their disposal that will allow them to give you advice specific to your Sonos system and network.
