You can also use the Net Assistant to modify existing nets. Select “Existing Nets” from the dropbox above the list on the left; the list will be filled with the names of all nets in the model. (When modifying a specific net, you can simplify the task by highlighting the net prior to invoking the Net Assistant.) Select the net name in the list on the left; the list on the right will be filled with all unconnected ports. You can then quickly add port connections to the selected port, select it on the left and click on the “Disconnect” button.