This is an example of a Master table. It defines the typical entry items you might want to track for a listing of contacts. It demonstrates a few of the different data entry input features CMS Composer is capable of such as: simple text entry fields, a dropdown list (Contact Type), a text area (Comments), a checkbox (List Opt In) and a read only Created Date/Time. You try it by adding new or editing existing contacts.
After you see how the Full Edit screen mode works, try clicking the 'List Records' button to enter into the multi-line Quick Edit screen mode. You might think that the Comments text area is a bit cramped until you right click on it to discover its full page entry feature.