Parents can give access to other members of the family to save documents or files in your folders and can upload documents if you give them permission to do so.
You have requested files from different persons and you want to receive them in the same place? You can right-click on a folder, press „Get info” button and then a box with the name and description of the file will open. You will also have the option to choose if parents can or cannot upload any documents in the folder.
When surfing on the last 3 columns you can visualise the type of file anytime (no matter what name it has), who has access to it and its dimension.