Relay is a simple process module.
It has a single channel, called "Client", which has a control worker with a process identifier of "control". This allows an instance of the module to be called with a process identifier of "control" to retrieve process definitions.
The installed module does not define any permissions other than to give anonymous access to the channel.
The control worker is a dynamic worker which runs the process defined by the process module definition.
Relay comes with three group profiles - the default Relay group (a project), one for the connection group, and one for the home folder. The one of the connection group can be used to set or remove Relay as a default control connection across the process client.