Below are some YouTube links to some of the Sunsynk YouTube videos explaining the interface on the inverter.
You can find more by following the Sunsynk channel HERE
New Sunsynk Interface
Sunsynk Interface Part II
Sunsynk Interface Part III
As mentioned, these settings will apply equally to the Deye and Ohm.
You can get more info on the Sunsynk and Deye inverter range HERE