Looking for the ability to use categories for Box Notes

I'm looking for a feature that is similar to the "Section" and "Page"/"Subpage" organizational functionality of OneNote, that allows you to categorize your notes.  The closest thing I'm seeing in Box is using folders and subfolders, and possibly the "Collections" object (of which only "Favorites" exists at this time).  Is there some existing functionality that mimics the organization capabilities of OneNote?  Or are there plans to expand the "Collections" object to allow users to create their own collections objects for organizational purposes?