UX improvement: Show the export you were lastly viewing when going to 'Preview and Export' page
If you are viewing an existing export and go back to your book or leave the system, the next time you visit 'Preview and export' that is the export you will see, instead of the New Export sidebar which is only the default when a user doesn't have any saved exports yet.
Currently, every time I go to the Preview page, I will see the default "New export" version no matter if I have other saved exports.