I know I can just skip past this part, but it's really bugging me that I cannot figure out how to add the pages to each book while playing on my iPhone. I have gone back numerous times to grab a page and bring it back to its rightful book. If i drop the page while looking at the book, it just returns it to the Age it came from. If I open the book and then drop the page... ditto. I cannot start the video and then drop the page. How do I add pages?!?!