If you have the appropriate privileges, you can delete Lists. Deleting a list deletes the query criteria and the compiled list of records. It does not delete the actual records from your IQ database, only the reference that the list maintains to those records.
To delete a list:
Click the module tab and click the Lists submenu link.
Search for the list or lists you would like to delete.
Select the check box next to the list or lists you want to delete.
Select the Delete Lists action located under Lists Tools....
Click the Submit button in the Execute Lists dialog.
Click OK in response to the lists deleted message.