Can't add new page in the middle of document

Question

I am creating a manual and inserted page breaks at the end of each page as I created the document. Now I am trying to add a new page to the middle by inserting page breaks and even section breaks, but every time I try to add it in, it just goes to the bottom of the document and I am unable to move anything into the original 50 pages. Any tips here?
When I look at the thumbnail view of the document it has all 50 pages in one yellow box instead of one page individually. A bit odd.

Answer 1

The thumbnail browser shows one small page thumbnail for each page of your document. Each yellow bounding box indicates a section. So the thumbnail browser indicates your document has a single section with 50 pages in it.
As you've typed your document it has naturally flowed from one page to the next. If you place a page break at the end of the page you are simply mandating what Pages has already voluntarily done. But if you insert a second page break you should get a new blank page. In other words, if you put your cursor at the bottom of page 6 and insert a page break you will move to the top of page 7 which has text because it is still page 7. Insert another page break and page 7 becomes page 8 and you'll have a blank page 7.
Note: if you move your cursor into the middle of the document and insert a section break you'll see that the thumbnail browser shows two sections; one ending on the page above your cursor and one starting on the page your cursor is in. This is useful to understand.
Second Note: if you use the Insert>Sections option it always inserts a new section at the bottom of the section your cursor occupies. Since your document currently has one section, that's why you wind up with the inserted page at the end of your document.