One of the most useful features of the improved EG Editor is Keyboard Macro shortcuts, to program many common actions of the editor with a keyboard shortcut(of your choice) e.g.(highlight data steps, procs,duplicate lines,delete lines, paste custom code).
I want to propose to make this development is sas studio, because any code editor is incomplete without this feature, because it is present in the best ones ej. (EG, Notepad++, Visual Studio, MSSMS, Vim, Toad, TextPad,etc.).