In sublime text you have the minimap (shown on the right of this screenshot: http://www.sublimetext.com/screenshots/alpha_goto_anything2_large.png).
This allows me to see an overview of my code. It also allows me to use it as a scrollbar (which is actually much more convenient using a touchscreen than scrolling the text container.
With the minimap I can jump to sections of code from knowing its visual layout, and I can learn to keep track of my code visually. It's one of the most useful UI features I think I have found in an editor.
I would love to see this feature as an option in codewriter.