Left/Right pull-down menus                      
 The Left and Right menus allow you to change the left and
 right panels.

                Left -----+          +------- Right
                          .          .
                    +-- Tree --++-- C:\ --+
                    |          ||         |
                    |          ||         |
                    |          ||         |
                    |          ||         |
                    |----------||---------|
                    +----------++---------+
                    C>_

 Information for the Left and Right menu options is available
 on subsequent help screens.