iswithzhz has a habit of posting images of his work that he has done with not much explanation or download link to see for yourself. This looks like an editor replacement for PRG file types. However, NotePad++ can do the same thing as well. So, I am not sure of any real benefit of using the above. You can use TEDIT in the configuration file (similar to _MENUDESIGNER) that allows for another program to be used as the editor instead of the built-in editor.