The Privileges group is about user accounts which are created and edited on the User page.
All users are divided into groups you can create on the Group page.
Each group has its particular access rights which are defined on the Shared Folder page.
The Storage group contains settings pertaining to the folder structure on the DS107+. The HDD Management page is where you can turn data caching on and off.
The Volume page allows to perform basic operations with the disk partitions.