EDT Delete Line
  Erases a line, starting with the current character.  The next line (if
  any) moves up.  (Same as the ERASE LINE command.)
  Steps:
     1.  Put the cursor where you want to erase text---that is,
         on the first character of the text you want to erase.
     2.  Press the EDT Delete Line key (PF4).
  Usage notes:
  o  At the end of a line, Delete Line erases only the line break (carriage
     return), making the next line, if any, move up.  This is useful to join
     paragraphs for FILL commands.
  o  To insert what you erased, use the RESTORE LINE command (with the EDT
     keypad, press GOLD-PF4).
  Related topics:
     ERASE START OF LINE     RESTORE     RESTORE LINE