Hi,
Thank you for your application it's very useful! This might be a dumb question, but I'm trying to figure out how to have different levels of folders. For example, I'm studying German and Latin right now, and it would be useful to have one folder titled German with all my German subfolders in it, and then Latin with all its Latin folders in it. I can't figure out how to do this on the app but I'm sure there's a way.