In the intro to the page you want to add a sixth and seventh. I agree that it would result in the presence of Contents with links to a page already. We therefore suggest that the appendix on page sixty-two and sixty-three.
In the section of the Edit intro that you want to add the page six and seven. I see how it affects the table of contents page with links jumping ahead. It would further recommend that, in the end of volume six in twelve and sixty three.
on the part of the intro that you want to add the six and seven, I saw that it will be sent to the table of contents at the front, and then jump to link to more on the part of the book, in the sixty-second and sixty-third