Overlay Toolbox
    The Overlay Toolbox contains controls for
      setting the data to be displayed on structures and in charts.
       
      By default, the Overlay Toolbox is attached to the bottom of the Workbench
            Window, under the Viewing
            Area, in a horizontal configuration (top image).
    It can also be attached to the left side
      of the Viewing Area, in a vertical configuration (bottom image,
      set in View
            menu >  Overlay Toolbox). Either
      configuration can be detached from the Workbench Window by left
        click + drag on the top of the
      Overlay Toolbox. To reattach, double click on the top of the Overlay
      Toolbox.
      
      There are 4 tabs in the Overlay Toolbox, each controlling a
      different type of data viewing: 
    
      - Layers
          controls display of data maps on surfaces or in volumes. 
      - Charting
          controls which files are charted and, for data series/time
          series, which data for identified vertices is being displayed
          on a chart.  
      - Connectivity
          controls which Connectivity and Fiber orientation files, data
          is being loaded from for display.
Tabs and files available for viewing change
      depending on whether you are in Chart view,
      Montage
            view, Volume view,
      All view,
      or Surface
            view.
    
    
    
    
    
    