This is a GUI version of the popular E editor for IBM OS/2 Presentation Manager.
Author: IBM Corporation Homepage: http://www.ibm.com Download: http://hobbes.nmsu.edu/h-browse.php?dir=/pub/os2/apps/editors/epm Family: IbmEditorFamily OS/2EditorFamily Platform: OS/2 Presentation Manager License: Commercial
It is fully compatible with E in full screen mode.
EPM has got a big set of macros in a distribution called [nepmd (Netlabs EPM Distribution)].
See also [article in OS/2 Ezine]