Clipping
    Clipping contains controls for clipping the
      view in the X, Y, and Z planes for Surface, Volume, and Features
      structures in Montage,
       Volume,
      All, and Surface
      Views.
      
        - Checkbox toggles turn the clipping
            off/on in each plane and for Surface, Volume, or Features
            structures.
        - Show Clipping Box Outline toggle
            is useful for seeing exactly what will be clipped when
            clipping planes are turned on. 
 
      