You won't see this option if you are not a Office 365 account.  

Choose save to OneNote Online select the saving location.  

Tap or under 'Selectable' to enable/disable configuration prior to each scan task in operator's interface.  

Notebook  

Select the Notebook you want to save the scanned document.  

Add Notebook  

Optional, or enter new notebook name.  

Section  

Select the section in the notebook you want to save the scanned documents.  

Add Section  

Optional, or you can add new section in the notebook.  

Page  

Select the page of the section in your notebook you want to save the scanned document.  

Add Page  

Optional, or you can add new page in the section.  

Account Verification  

A message box prompting for credentials will be required each time when enabled.