Syntax:  SHOW MARK mark_name_wild

  Displays information for the indicated user marker.

  LSE displays the name, associated buffer, and associated text for the
  specified marker, or a list of markers and their associated buffers.
  To obtain a list of markers, use wildcard characters in the
  marker_name_wild parameter.

  Ctrl/F and Ctrl/B let you move through the list of markers, and the
  E3 key (Remove key) deletes a marker.  The EXPAND command lets you
  display the associated text for the selected marker, while the the
  COLLAPSE command returns you to the marker list.  From the marker
  list, you can go to a selected marker its associated buffer by using
  the GOTO SOURCE command.