DataSet Address Books are implemented as subsets of the Account DataSet. These Address Books are quite simple, and they can store only the E-mail, Real Name and the Certificate information. These Address Books can be used as String Lists.
Because of the dictionary-based subset design, these Address Books become ineffective if they contain more than 100-500 records.
To specify which subdictionaries of the Account DataSet to show as Address Books, open the Settings page:
To add an Address Book, enter the DataSet subset name into the last empty field, and click the Update button.
To remove a DataSet Address Book, delete its name and click the Update button. This operations removes the Address Book from the list of the displayed Address Books, it does not delete the Account DataSet subset or its contents.