Return

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

  When editing text, pressing the Return key starts a new line at the current
  left margin.  The cursor and any text moves down a line.

  When issuing a command, pressing the Return key terminates a command.  You
  can have the cursor anywhere on the command line.

  Command Equivalent:

          DO "SET INDENTATION CURRENT","ENTER LINE"

  Related Topics:

          ENTER SPACE
          SET NOWRAP
          SET WRAP