Information Window
      The Information Window provides information on identified locations (left click on surface
        or volume in the Viewing
              Area). 
        
        Information provided for surface ordinates includes the vertex
        number, surface name, x, y, z coordinates on the surface being
        displayed, and data values/label names at that ordinate available
        from all files currently loaded. For volume ordinates, voxel
        coordinates in stereotactic space and slice indices for the
        loaded volume are given, along with values for data loaded that
        displays in volumes. 
    
      - Clear: clears
            all information in the Info Window. 
        - Copy: copies all
            highlighted text (left click +drag) in the Info Window for
            pasting outside of wb_view. 
        - RID: Removes all ID symbols off
            surfaces in all Viewing
                Tabs/Windows, but all
            Information displayed in the Information Window is retained.
        
        - Contra ID: Identifies the
            corresponding location on the hemisphere contralateral to
            the one clicked. Display of contralateral IDs is not
            retroactive. 
        - Properties:
            opens a box of settings for ID and Contra ID display
            attributes.  
