NEs are accessed in panels in the cabinet and each NE can be activated from its panel. The cabinet organizes NEs in a tree structure, and the panels are access points for the tree, allowing you to view and use many different parts of your tree at the same time. The twelve panels in the cabinet structure allow you to access your tree at up to twelve points at the same time. Cabinets ( ) and NEs ( )can be opened in any of the panels. When a cabinet or NE is opened in a panel (as is in the example), it's name appears atop that panel as , and all the s under it in the tree are displayed inside the panel.
