Protocol:

The Protocol selector will list the types of controllers installed in Harmony. Depending on what extentions are installed the protocol selector will list the Protocol types such as X10, C-bus, Rako, etc. By selecting the protocol you can manage the devices within it.

'Protocols' automatically add themselves to the Protocol selector when an extention is installed. For example when a Rako extention is installed, the Rako Protocol will automatically appear in the Protocol selector in Harmony.