Turn on mycloud ex2 ultra

My Cloud OS 3 Personal & Network Attached Storage My Cloud EX2
6

My MyCloud EX2 Ultra (2019Q1) does.
If you not already haven’t, I would say, give it a try. As far as I know there is no setting (available) that needs to be switched on, it was standard available to me.
You may also have a look at this thread: Shutdown via SSH.