Sometimes, I just need to find a section or word in the chapter I am actively reading. As some of my textbooks are over 1000 pages, (1) it takes Margin Note some time to search through the entire book for the search term (especially if it is a common term); and (2) once all the instances of the word are found, it takes a considerable amount of time and effort to go through an exhaustive list of search results and actually find what I was looking for...