I have been a Goodnotes user for over 5 years, and it is currently my primary note-taking app for my studies in medical school. I have recently noticed a small redundancy that I believe can make the user experience a lot smoother if a slight improvement is made. When accessing the outlines within a notebook composed of imported PDFs, there are both custom outlines and auto-imported PDF outlines. As is the case with many students, the PDF outlines are often cluttered and sometimes irrelevant, so custom outlines are instead used to divide the various subsections (eg. lectures) within a notebook. Custom outlines can be filtered, so as to show custom outlines only, however, when re-opening the notebook the user must re-filter this (ie. toggle "PDF outlines" off), which is oftentimes redundant. I believe providing a simple function where "PDF outlines" can always be toggled off, so that the user does not have to continuously toggle this every time they open the notebook, would make a substantial improvement to the seamlessness of the Goodnotes user experience.

I have attached a screenshot of the function I am talking about from one of my own notebooks.