I built a large help document for an application I wrote. I used all the default styles in Word 2010, including "Title", "Heading 1", "Heading 2", etc. Sadly, when I generated the Table of Contents, Titles were not included. I'm also now using chmProcessor to automatically generate a website from the document, and it's not including Titles in its Table of Contents either.

I'd like to make all Titles into Heading 1s, all Heading 1s into Heading 2s, and Heading 2s into Heading 3s, etc. Is this possible without a huge manual effort? (I'm sure there's a better word than "demote" for this.)