Limit accessibility

I have tried other ebook apps before but this one is the worst. Except for the clean layout, the functions this app provides are too limited. It forces users to navigate and take notes in a certain way. There are not many options to customize how a user can read or edit the book. I am only use the app because the professor for my econ class put the "required" textbook which is written by him on vital source marketplace.

Khazar237 about Bookshelf, v3.8.1