There is this button on the top left corner with four squares, where we could shift the pages around, flag pages, save them into the content page. But its stupid how we can't select multiple pages (or maybe its just that i cant figure out how). So if i want to select some ten pages and move them up, or delete them altogether, or export them, I can't.

But overall, I really like Goodnotes and the feature I love the most about them, is them constantly listening to our feedbacks and improving their interface.