Moves the structure pointer forwards at the current level and displays
   the structure at the new position.  Entering a null command (<CR>) is
   equivalent to the NEXT command.

     Format:

        NEXT [n]

   n
        The number of positions by which you would like to move forwards.
        If you are analyzing an indexed file and are positioned at the
        1st record in a bucket, "NEXT 1" positions you at and displays
        the 2nd record in the bucket, and a subsequent "NEXT 3" positions
        you at and displays the 5th record in the bucket.  The notation
        for this argument is described in HELP RADIX.  If "n" is omitted,
        the default value is 1.