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

  Syntax:  ENTER SPACE

  Inserts or overstrikes a space at the current cursor position.

  If the cursor is past the right margin and wrap mode is set, this
  command performs an ENTER LINE operation on the current line.