Muse and HA as a Voicee Assistant deevice

Hej,
solved. I have to adopt the device and configure it, this time the installation was quite different and after fixing all this things, its talking again.
But, I want to use Muse as a IO device for a Voice assistant, so listening is also a part of the game.

I setted up a test button ‘testlamp’ and I am able to use the Assist (new icon in the right upper corner) to control it, by typing text.
Works fine.
So the last thing missing I guess is the speach-to-text part and the wake word detection.

I found a switch ‘Use Wake Word’ on the device page of my Muse, but this switch is disabled.

And during the configuration process, there was no selection like ‘use this device as input’ or so, like I have to select Muse as output device.

With best regards

Gerhard