1- The MH-S220 has an existing driver in Hubitat, working perfect.
2- The S242 is very similar, though it has 2 Gangs (2x10A). By using the 1 Gang driver, it works ok and can operate channel 1, but the childs are not created. What would be needed to modify the driver to add the 2nd child.
Possibly, if it reads the number of endpoints from the device and makes all the needed child devices. I am not sure how it works, it is a built in driver and those are not open source.
You would need to use something else to configure it, like my Universal Scanner if the device supports being scanned for the settings.