When working with rented lists where not allowed to email net new contacts, it would be great for ELQ to have an option to upload contacts and only update existing contacts and ignore new. Right now the only upload option is 'Update/Add' but would like to see these broken out. If we upload the full list we risk fines if don't properly delete the new contacts. This just causes extra work. Elabs and other tools had this functionality @and would be great to see in ELQ. Thanks!