Viewing Area 
    Viewing Area is the field of the Workbench Window
      where images of the surface, volume or whole brain are displayed,
      or in Chart
            View, where chart data is
      displayed.   
    
      -  The image or chart displayed is set for
          each Viewing
                Tab, unless Tile Tabs view is on (see View Menu),
          which displays images/charts for all tabs within a single
          viewing area.
      - The default placement of the surface or
          volume is in the center of the viewing area and, in Surface
                View, rotation is about the center of
          gravity of the surface.
      - Use the Reset button in the Toolbar
          to return to the default zoom, pan, and orientation.  
      - The default background is set to black,
          but this can be changed to any color in the Preferences:
          Color tab.
      
        - Click on the tab names or press
            Command/Ctrl + left and right arrow buttons to switch the
            Toolbar and Overlay Toolbox to control each tab's display
            options. A box will appear briefly around the Active Tab
            "tile" in the viewing area.
 
      
        -  Mouse controls operate independently
            for each "tile", unless Viewing tabs are yoked (see Tab
                  Functions).
 
 