DO
  Enters or terminates an EVE command.
  Key:   EVE default    VT100 keypad    EDT keypad     WPS keypad
         -------------------------------------------------------------------
         DO or PF4      PF4             GOLD-KP7       GOLD-[ (left bracket)
  Steps:
     1.  Press DO (see       The Command: prompt appears at the bottom
         key list above).    of the EVE screen (just below the status line).
     2.  Type a command,     You can abbreviate commands, using the first
         such as FILL.       letters of the command, sometimes less.  EVE
                             commands are not case-sensitive.
     3.  Press either        EVE executes the command, or prompts you for
         RETURN or DO.       further action or more information.
  Usage notes:
  o  Pressing DO twice repeats the last command you typed. If you press DO
     and then simply press RETURN---without typing a command---no command is
     executed and you resume editing. See help on Canceling.
  o  You can have more than one key defined as DO. For example, you may want
     to define a control key (such as CTRL/D) as DO, to make it easier when
     you use EVE with different keyboards which may not have a function key
     named DO.
  o  If you are accustomed to EDT, you can redefine CTRL/Z as DO, to emulate
     EDT-style exit-to-line-mode.
  Related topics:
     Abbreviating              Canceling Commands       Choices Buffer
     Editing Command Lines     Prompts And Response     RECALL