Arnold, I agree, I do remember seeing it on what I think was the PWB 4.0 tape.  IMHO: it was before cshell, termcap, vi et al was released inside of the rest of the Bell System and there seemed to be sometimes "SW from BSD be bad/crude" 'tude.  IIRC ber and mmp must have had it running on the Marx's brothers systems in Whippany.  But he had vi, so I personally never used it.

@Mary Ann - this would have been around the time you were in Columbus and starting the terminfo work.  Do you have any memories?

On Tue, Mar 29, 2022 at 5:29 AM <arnold@skeeve.com> wrote:
Did anyone within the Bell System ever use a screen editor called 'se'?
(NOT related to the Georgia Tech se editor [se-editor.org]).

I used this on a USG UNIX 4.0 system ~ 1982 when I did some contract
programming at Southern Bell.  I think it was originally written for
the Vax but it had been squeezed to run on a PDP-11/70 also.

I've mentioned this in the past, but it seems to been covered over
by the sands of time, and that nobody else ever used it.

Arnold