The EPM, being shipped with OS/2 or eComStation as part of your desktop, is a very flexible and reliable editor. Not many users though also do know, that it is also highly extendible and configurable, far more than you may know from the built-in settings notebook that it provides. But already the task of adding new filenames or extensions to the syntax highlight support or alone activating hilight support for certain files cannot be accomplished by most end users.

For all that beyond the settings notebook EPM users in fact need some kind of programming knowledge and for many things they require also the E sources and the compiler for those. Moreover, the E sources and the macro compiler need to be installed manually, after having hunted them down in the internet.