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

  Syntax:  SET PROMPT TERMINATOR user_key_name add_remove

  Specifies which key completes a prompt.

  Using a prompt terminator key, tells LSE you are done supplying input
  and to proceed.  The default prompt terminators are ENTER, FIND, DO,
  and RETURN.