RETURN

 Inserts a carriage return at the current editing position, or terminates a
 command.

 o  In editing text, RETURN starts a new line, moving the cursor, and any
    existing text to right of the cursor, down.  Text does not
    automatically rewrap.

 o  In terminating a command, you can have the cursor anywhere on the the
    command line.  Generally, if a command prompts for required
    information, simply pressing RETURN at the prompt cancels the
    operation.  See help on CANCELING.

 Keys:  EVE defines the RETURN key, CTRL/M, and ENTER (except with the
        VT100 keypad).  You cannot redefine RETURN.  However, you can
        redefine ENTER.