Sedt Version 1.0 Sedt is a high performance, full function VAX screen editor that offers a number of unique attributes: Full support of the VT200 series terminals using VT200 7 bit mode with support of all function keys and multinational character set. Sedt will automatically switch the terminal into and from VT100 mode. Superior performance through optimal coding, screen optimization routines and the ability to have SEDT reside in a subprocess, which allows Sedt to be reentered without any reinitialization. The ability to run on slow terminal lines through suspension of screen updates when a command is entered and by moving the cursor window to the top of the screen. Adaptability to new terminals through simple modification to the sources. Callability, which enables SEDT to be integrated into other software packages. Callable Sedt is reentrant which enables to application to reenter the edit session. User interface that is very close to EDT in change mode. The ability to mark a number of points in the file and return to these points. All sources are included in the submission, which enables sites to taylor the product for local requirements.