New Network dialog
To display this dialog, right click the model group and select New | Network.
Enter a desired name for the new network in the Network Name box.
The Use Network Template check box is unchecked by default. By checking it, the user indicates that the network and database specified in the Network Template tab of the Options dialog are to be used as templates for the new network being created.
Any object (pipes, nodes) created in the template network will be carried over into the newly created network.