By definition, ports in ConnectMaster are assigned to a Network Interface / Card component. So when creating a Virtual Grouping Port, it is created as a grouping of physical ports (and/or inner ports) on the same Network Element / Mux, and it must also be assigned to a  Network Interface/Card on that Mux. The Network Interface / Card to which a grouping port is assigned is often a management card in the Network Element / Mux, but if appropriate it can be assigned to any of the cards in the Network Element / Mux.