You can delete connections between terminals and the corresponding controls or indicators individually or all at once.
To delete a terminal connection individually, right-click the terminal you want to disconnect on the connector pane and select Disconnect This Terminal from the shortcut menu. The terminal turns white to indicate that the connection no longer exists.
To delete all connections on the connector pane, right-click anywhere on the connector pane and select Disconnect All Terminals from the shortcut menu.
Notice that disconnecting a terminal is different from removing a terminal from the connector pane pattern. Disconnect This Terminal deletes the connection, but Remove Terminal removes the terminal from the pattern.