Here's an editor that is similar to DEC's VMS EDT editor, but runs under
various operating systems: MS-DOS, OS/2, Windows-NT, both VMSes, 
most sects of Unix including AIX, OSF/1, HP-UX, Linux, BSD/386.

It is NOT a TPU-compatible editor (it doesn't read the TPU source language
files). And the initial version of the reverse-video-the-paste buffer
was removed because it did multiple repaints of the screen. 

ED v1.5.7 is an editor with a VMS/EDT like user interface, but provides
significantly enhanced features.  Multiple windows allow you to display
many files on the screen simultaneously.  Additional enhancements
include a file manager interface, ability to save key definitions,
editing by wildcards, an imbedded calculator, automatic program
identation, parenthesis matching, box/column editing features,
insert/overstrike modes, and sorting functions.  ED has no file size
limits and can edit binary files also.  The source distribution will
build on virtually any platform, which allows you to have the same
editor on all systems.  ED can be used immediately without training by
EDT users, and they can use the enhanced features at their own pace.

For systems with a supported TCP/IP package, ED can be used as a file
manager and editor across the network to remote nodes.  There is also
a simple, fast imbedded news reader included with TCP/IP support."