To enable Kiosk Mode:
From Device Manager, click Device Fleet.
Click the headset or group of headsets you want to enable Kiosk Mode for, then click Settings.
Click next to Kiosk Mode, then select On.
Select the app you want to enable for Kiosk Mode from the drop down, then click Save.
Kiosk Mode will be enabled on the selected headsets after they sync with Device Manager. Rebooting the headsets will initiate a sync.