I have a basic question regarding nautilus and unity. I just discovered nautilus after a quest to manipulate a file, and found that when using nautilus I can view/change files at will whereas with unity I can't even edit some files (there isn't even an option to edit as superuser). What is the difference, and why can't I make some changes in unity, see the changes I made? The file I wanted to change is changed, and shows changes in nautilus/gedit/nano, but not in Unity, but the file is changed! Why don't these changes show in Unity 2d?