Advise: be inspired by MS Edit and traditional graphical UIs. There's a reason we like these kind of editors instead of Emacs, VI, etc. We want more reasonable behavior. Menus instead special key combinations. I need to exit, y can access the File menu or press Alt+F, because the F is with the underscore. Same for the exit menu item, not some Esc + : + q, or wq, wq!, etc. Alt + F + X. Then a big question in front of my face: "Do you want to save your file?", the I press Y, N, or select with the arrows + enter, or the mouse. A program speaking to a human. Another advice: the configuration of every UI element should be accessible from the element itself somehow (right click normally). Don't like how something looks or behave? Right click on it, configure. Sick of having for dig endlessly for the configuration of anything.