Full screen Editing
Please have a way to edit a document in full-screen mode; i.e. hiding all toolbars but still able to edit a document.
E.g. double tap with two fingers to hide/show toolbars without leaving edit mode
This is legitimately the only thing holding me back from using Goodnotes 5 all the time
A floating toolbar in fullscreen mode would then be very useful :)
EDIT: I wanted to add that I'm a teacher who will soon make some lecture notes in PDF for students who will use standard iPads. Since their screen is indeed not super big, I'm preparing those PDF in the 4/3 format to get the most of it. However, not being able to edit the PDF while in full screen is a HUGE bummer. I could do the PDF in 16/10 to leave room for the tool bar but that would be a too small area for one page of lecture notes. It's ok for sides with minimum information but not a book page :D