A DataSet clone is a physical copy of the DataSet metadata and all the referenced sound files.
Making a clone of a DataSet is useful for transferring data from one computer to another or for archiving or backups.
Select the menu File > Dataset > Backup (clone) everything ....
You can then choose to save all files into one directory (Flat Copy) or to use a sub-directory structure based on the DataSet's sets (Map sets to directories).