It’s not possible with the UI directly, but you can use the terminal for that:
- Activate “Show remote terminal on device page” on https://info-beamer.com/account
- To to the device page, scroll down to “Remote terminal”, click on the small ▾ and select “Connect as root”.
- Click on “Confirm and connect”.
- Wait until you get a prompt: Something like
info-beamer-12345678 /space/root # _ - Type “halt” and press enter.
The device will shut down and will not reboot. It will require a manual power cycle to restart in the future. So be sure you halt the correct device.