This section explains how to edit metadata sets used by the Librarian
Interface. This is the only way to remove a value from the "Previous Values"
tree. Although you can use the Enrich view to remove a certain value
from a record, the value remains in the value tree. To remove it (or any
part of the metadata set, including its elements), use the metadata set editor.
The same tool is used to alter the instructions that map metadata from files
imported into the collection to existing metadata sets. These are called
"importing profiles".
To edit a metadata set or importing profile, choose "Metadata Sets" from the menu
bar and select the "Edit Set" action.
