The posibility 2 make folder 4 organizing

A folder system is important for ordering all the material for my studies. Without one keeping an overview, is extremely difficult.

I'm very happy about the App but, I'm missing the fonction to uploade PDF an photos, to work with this :/ And I miss the folders :/

Allow for more divisions like "subject", "folder", "section", etc.

Create folders for better sorting and order of the notebooks.