As I’ve mentioned before, Address Book is filled with useful tricks. One of these is a feature that allows you to take any contact and find which group or groups they are a member of. Simply select a contact in Address Book and press Option. Every group which they are a member of will be highlighted in yellow, as seen below.
This trick also works for multiple contacts. If you select two or more contacts and press Option, Address Book will highlight all the groups which all of the selected contacts are members of.
This trick also works with Smart Groups, and regardless of whether the card or cards being checked are people or companies.


Rick
Chris Velevitch