How to merge two mailing lists?

How to merge two mailing lists?

To merge the lists, follow the steps below:

  1. Open Contacts tab from the navigation bar and select Manage Lists.
  2. Click More present in the top right corner. 
  3. Select Merge Lists. 
  4. Select the From list and To list to merge subscribers.
  5. Click Save.

Note: 
Select the Delete "From Lists" after merging check box to delete the existing mailing lists after merging the contacts to a new list.