Using NSTokenField

Last Revision:	Version 2.0, 2016-06-03 Upgraded to OS X 10.11 SDK, now uses Storyboard, added custom menu support for tokens. (Full Revision History)
Build Requirements:	OS X 10.11 SDK or later
Runtime Requirements:	OS X 10.10 or later

"Tokens" demonstrates how to use the NSTokenField class. An NSTokenField is a text field containing tokens as its content. A token represents a string or other object. A token’s distinctive form makes it easy for users to recognize and manipulate it. Sometimes users select the string to be tokenized from a list of possible entries presented to them, such as the list of email addresses.