The document administrator (the project or shell or company administrator or other designated user with full administrative permissions) has the ability to lock the first-level folder structure. First level refers to folders and documents directly under the root folder. It does not refer to the sub-folders within the first-level folders.
Locking the first level folder structure prevents other users from adding, modifying, or deleting folders and documents on the first level, or changing the document or folder properties. Users can modify permissions on first-level folders and documents.
This ability allows the administrator to establish and maintain a consistent main folder structure within and across project or shells.