2.3.4- Menus - Nouns - Focus on (Selected Noun)
This commands removes all nouns other than the selected noun from the Nouns List of the Model Window, then fills the Statements List with all statements related to the selected noun.
The menu item for this command changes depending on the selected noun.
For example, if a person named "John Doe" was selected in the Nouns List, the menu item would read "Focus on 'John Doe'".
Even though the other nouns are removed from the Nouns List, no information is deleted from the model.