I'm a fairly heavy user of Office for Mac, and "Outline View" in particular. For structuring a Table of Contents, it's essential. One nice tool is the ability to promote or demote particular levels of the outline without taking your hands off the keyboard. Because I can never remember the shortcuts to do so myself, I'm putting them here for my (and everyone else's) benefit.
Demote: Tab.
Promote: Shift+Tab.
Body Text: Shift+Cmd+N.