I’m struggling to understand document notebooks, as I’m not clear on: a) how they differ from the documents we add to a study set, b) why create notebooks vs just uploading documents as usual, and c) how to create a document notebook. Can anyone point me to something (an English resource please) that would resolve this confusion for me? Thanks.
Hello
You can think of it as a new notebook. For example, when you first work on an exercise book and extract wrong answers, and then you need to work on the exercise book a second time and want to extract new wrong answers, you can use the document notebook. There is a manual in the 
on the home page
Kind Regards,
Support Team