The Structure Editor, with its compact textual display of inheritance in lists, is often easier to navigate than the Network Display, as inherited properties are shown directly.
The Structure Editor allows direct editing of the structure - operators and links can be added or edited.
The flexibility carries a cost - the normal error prevention methods of the Model Editor do not apply and a mistake can be tedious to fix, so the application window should be used with care.
The window also allows access to NLP forms, if they are part of the delivered modelling system.