in ibooks author how to make an existing page start a new section
I have imported a Pages document into ibook authors (version 2.1.1 in OS 10.9.1) using the Classic Text Template. The original Pages document was basically a book, with title and table of contents and forward and several sections. Now everything is one huge unit. During the import I can choose a layout, but only a chapter or a section. Then all of the document is regarded as having that layout -- every page is regarded as having the section layout, for example, though only the first page has the smaller text area and the large text as a header. I can see all the layout possibilities in the Layouts sidebar, and they include section and forward and 1 column. When I hover the cursor over a particular page the book sidebar I see the little triangle that has been mentioned, and it offers options for changing layout, but it does not allow me to make that page a new section or a forward. I can only make the page 2 column or put a sidebar on it. I cannot see how I can import the book and be able to create chapters and sections with ibooks author. I can insert a new section layout, or a new page, but I do not see how to to change a page, after it is imported and is considered to be the text of a chapter or section, into the start of a new chapter or section. I do not find anything in the inspector or on the menubar or in the help center that makes this change. The "add a chapter title" does not change the layout to make the text box smaller, as it should for a layout. Is it actually possible to convert a Pages book into an ibook authors book, or must I create the blank chapters and sections in ibook authors and then cut and paste each section from Pages?
Aperture 3, OS X Mavericks (10.9.1)