Defines a region for 'Office Use Only'. Administrators viewing this form in the admin area can see the contents of this region, and save additional data for the fields you define.
Contains other Form controls, as well as any formatting required.
Give this control a unique id. Can be accessed in the client DOM (eg, document.getElementById('myid') or in the server DOM using [? $myid ?] or [? $('myid') ?]).