Foci editing
    When Foci Mode
      is activated, select Edit tools in the dropdown displayed at the bottom of
        the Toolbar.
      
    
     
    
      - By
              default, the Properties button is activated. If
            a displayed focus is clicked, the Edit Foci box will
            pop up and a focus's Name, Class, or XYZ location can be
            edited.  
      - When the Delete button is activated,
          clicking on a focus will delete it from display and from its
          foci file. 
      - When you are done editing/deleting foci,
          remember to save your changes using Save/Manage
                Files. 
 
      