In the intro to the page you want to add a sixth and seventh. I can see how it would affect the change of contents page with links to a page already.So as not to interfere with the same information that is already available.
In the section of the Edit intro that you want to add the page six and seven. I believe that it will result in changes to the table of contents page with links to jump ahead. So don't affect the original data that already exists.
on the part of the intro that you want to add the six and seven, I saw that it will affect the change of the page Table of Contents a jump page to link.To do not affect the original data will be available.