"Whether you're a seasoned Linux user or a newb who's just switched from Windows, getting your Linux experience to run just the way you want it can be a time-consuming chore--especially if you do it by tweaking every app and setting individually. But with the GNOME Configuration Editor, you can tweak everything--from your OS interface to your individual apps--through a single, easy-to-use menu.
"If you're running Ubuntu, Config Editor is not enabled by default..."