My dad is considering getting a mac after seeing the whole family move to macs over the past few years but he's asking if there's a way to sync the contacts on his iPhone and the contacts on my moms iPhone to the same mac? They don't have the same contacts which is why there would have to be a way to pick what is syncing. Is there such a feature on the address book or some other mac app so you can have two address books? And it's not a viable option to pick what contacts to sync one by one cause my dad has close to 2000 contacts.