If you previously split book content into multiple pages, you can merge it back together. You will know if this content can be merged by the two diagonal arrows icon above the book page.
Please follow the steps below to merge page content into one:
1. Above the book page you'll see two diagonal arrows. Click the arrows.
2. Once the arrows have been clicked both of the content on each page will be merged automatically. no further actions are needed to save it.
You can also check out our How To Video here: