When a menu placeholder is expanded, the Editor displays  a  list  of
  options.   Pressing  the  up  and  down arrow keys (bound to the GOTO
  CHARACTER/VERTICAL command) allows you to move  from  one  option  to
  another.

  To obtain help text on an indicated option, press the GOLD-HELP (PF2)
  sequence.

  Pressing the EXPAND, ENTER, or RETURN key allows you  to  expand  the
  selected option and remove the menu display.

  Pressing the key bound to the GOTO SCREEN command (Keypad 8 key) also
  allows  you  to  move through the menu, skipping several options at a
  time.

  Pressing any other key removes the  menu  display  and  performs  the
  operation normally associated with the key.

  If the option is a placeholder name, the placeholder is  enclosed  in
  the same class of delimiter as the menu option being expanded (unless
  the /LIST qualifier on DEFINE PLACEHOLDER  specifies  otherwise)  and
  the Editor then automatically performs an EXPAND operation.  If /LIST
  is specified, the list form of the delimiter found on the menu option
  is used.

  If there is a description associated with the  placeholder  or  token
  name  appearing  as  a  choice  in  a  menu,  the Editor displays the
  description along with the name.  For example:

        IF: tests an expression and establishes an action