The sat-nms MasterClient-2 is a client program for multiple sat-nms M&C servers. It can be used in parallel to the standard M&C client program in order to organise certain M&C system under a common main GUI.
You can invoke the MasterClient 2 with the following instructions (e.g. in a shortcut):
javaw -cp client.jar satnms3.mc2.MasterClient [config-file-name].xml