Address Book distribution list editor disabled by iCloud
After creating a group of contacts in Address Book, you can send e-mails to its members by simply typing the name of the group in the address field of an e-mail message, and Mail will fill in a list of the e-mail addresses of its members.
When Mail does this, by default the primary e-mail address for the contacts in the group will be used, so if a member has multiple e-mail addresses then the first one listed will be used. However, this default behavior can be changed by using Address Book's distribution list editor (available in the Edit … Read more
