Two actions are available on the SubordinateExportTagNetworkExt component.
Join
A way to issue the Join from this JACE station.
Set All Supervisor Station Names
Allows you to globally specify the target NiagaraStation that represents the Supervisor, applied to the “Supervisor Station” property in all the export tags in this station. This can be useful if you have copied in saved devices (from previous jobs) that contain export tags naming other Supervisor stations, as one example. Or, if you did not set the “Supervisor Name” property in export tags already added, either by mistake or by design. This command is also available in the Export Tag Summary Manager—see Specifying the Supervisor station globablly in all export tags.