Searching for contacts from send a message
Click Search from the tabs on the left. Select which attribute you wish to search within (number, Firstname, Lastname, Custom1, Custom2, Custom3). Type a full or partial search item and press [Enter] or the [Search] button. Select the items you require from the results and they will be added to your list of selected contacts. Now you can search for a different item and continue to add new results to your list.