In the Documents section, you will see any documents you assigned to your app(s).
If you open 'Documents' in the Cockpit, you will see all the documents listed in alphabetical order on the left side.
If you click on one of the documents, you will see all of the corresponding folders and files that have already been uploaded. The folders and the corresponding files are shown in alphabetical order as well.
On the right you will also see the buttons for creating a new folder and adding new files.
If you want to change the structure of the documents, e.g. create new folders and move existing documents there, you can do so with the drag-and-drop-function. Just click on the document, hold your mouse and move the document to the new folder. You can also move entire folders in the same way.