I have created an app that tracks projects during their life cycle. Throughout the process numerous documents need to be uploaded and attached to the project. The issue is that sometimes this can be hundreds of documents for a single project. Is there a way so that the document library has folders which would allow users to then put the "pictures" in the "pictures" folder etc. They would also need to be able to then download individual "pictures." Our app is connected with the Amazon plug in if that makes a difference.