This a special type of metadata set that is automatically associated with every single File Object when it is created, copied, uploaded, etc.
These are metadata sets that have been created for you.
|Custom Metatdata Set||This is a fully customizable set of metadata, defined by the administrator.||As many as you want to create|
You must specify which users can access the Metadata attributes. If you do not add them, then the user will not be able to add a tag to their file.