MARK

 Puts an invisible mark at the current position.  Later, using GO TO, you
 can return to the marked location.  This makes it easier to move through a
 large file or buffer or between buffers.

 Example:

    The following commands put an invisible mark at the current position,
    naming it CHAP ONE, and later return to that position:

       Command: MARK chap one
                  .
                  .
       Command: GO TO chap one

 Usage notes:

 o  Marker names can be one or more characters, including spaces and tabs.
    The names are not case sensitive (you can use uppercase, lowercase, or
    mixed case).

 o  To check names of markers in the buffer, use the SHOW command.

 o  Markers are NOT saved in the output file from session to session.

 Related topics:

    GO TO      SHOW