To change the book layout or to shuffle your pages click on the “All pages" view situated on the top in the creation studio.
All pages of your book will be displayed in front of you. Then you can shuffle your pages manually (one by one) by dragging them and positioning them where you want. *You cannot shuffle the front/back cover. To move a double page, you can use the arrow icons from the menu. This way, however you won't be able to move the first and the last page.
If you wish to edit your page whilst you’re viewing all pages, click on the page and then on the “Edit page”. This will bring you to the edit page mode where you’ll be able to edit it.
To see your book in preview mode - click on “Preview “ option. When you’re happy with your creation, click on the “Order” button to purchase your creation.
You can also watch this video to better visualise how you can move pages (shuffle layout) in your book: