SELECT
  Returns a marker for the current character position in the current buffer,
  and sets the video attribute for displaying the select region when it is
  visible on the screen.
  Syntax
     marker := SELECT (keyword)
  Parameters
     keyword    The video attribute for the character at the marked
                location:  NONE, BLINK, BOLD, REVERSE, and UNDERLINE.  This
                attribute applies to all the characters in the select range.
  Example
  The following procedure creates a bold marker for the beginning of a
  select region; as you move the cursor, characters that you select are
  bolded:
     PROCEDURE user_start_select
        begin_select := SELECT (BOLD);
        MESSAGE ("Selection started.");
        ! To turn off the selection, set the variable to 0
     ENDPROCEDURE;
  Related topics
     MARK   SELECT_RANGE