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

  Enables or disables line wrapping in the current buffer.

  This command enables the ENTER SPACE and ENTER LINE commands to
  perform a wrap operation in the current buffer.  Initially, wrapping
  is disabled unless the language associated with the buffer has wrap
  set on.