Use the console to set the device_id for zoned voice commands in Home Assistant. You can select any existing device with a zone (for example, kitchen) and bind its device_id to the willow device, and then use the willow device as a zoned source for voice commands.
For example, if your device is bound to the kitchen, the voice command "Turn on the light" will be recognized in Home Assistant as "Turn on the light in the kitchen".