I seem to recall reading in one SB1 document that you can set registry values programmatically.
I have not been able find this js api call. Anyone have it handy?
You can use this code to set registry. For more details check refer Rho API docs.
generic.SetRegistrySetting(2, 4, "Drivers\\BuiltIn\\HomeBtn","GroupPTTKey", newKeyValues._GroupPTTKey);
Retrieving data ...