UR22C - use as standalone direct monitor

Hi, does anyone know, if the UR22C can be used as a direct monitor without connecting to PC/Mac? Of course considering first proper setup, but then I would want to occasionally use it without my PC, using an AC adaptor.

Thank you for help!

I’m frequently doing just that with my 44C.
Cannot be 100% sure, but most probably works fine with the 22C as well.