World View
Unlike the Explorer, the World View displays one world at a time, using a larger (and editable) map size. It allows you to change various settings that affect the way in which the world is displayed.
There are two panels of settings, the Options panel, which sets the parameters for the actual generation of the map, and the Display panel, which changes the way the map is displayed.
In almost all cases, you need to click the 'Generate' button to recreate the map after changing the settings.