Library /sys$common/syshlp/lse$help.hlb SET_WIDTH  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  Syntax:  SET WIDTH number

  Specifies the screen width.

  This command specifies the number of characters on each input or
  output line.  The screen width parameter must be an integer in the
  range 1 through 252.

  RELATED COMMANDS:

     SET HEIGHT                  SHOW WINDOW ATTRIBUTES