If you change the format of Contacts, all the content from the previous format should be transferred.
Only a few names from my previous lists show up in the current lists format. Now to add those thirty names, I have to type in each individually with all their emails, phone numbers and addresses. Multiply that by many different lists.
To add a contact to a list, I should just have to type in the contact's name and all the other info should automatically transfer.
Yes, this new format is idiotic.