I’d like to be able to write notes on a page, and then create hidden pages behind it to do examples or whatever, kind of like writing on the back of a page in a physical notebook. Something that’s not another separate page that i would see when scrolling through my notes but if i wanted to see examples related to my notes on a specific page, or more inessential notes related to a specific topic, they would be attached to that page or “behind” it. This would be most useful in pdfs and math related subjects.