Final steps with your Studio EPUB
Once you have completed your Studio content you can create a build and preview the eBook in the Bookshelf reader. When the content is final it can be published to Bookshelf inventory with one click.
Click the Export button visible from the Table of Contents screen of your product to navigate to the Export page.
The Export Page consists of three trays. Each tray "holds" the most recent build, preview, or published version of your product. Your content will move downward from the top tray as each step is completed.
The first time you access the Export page for a product, all three trays are empty.