Magento Go lets you create up to three separate views of your store, depending on the capabilities of your plan. Store views are usually used to display a store in different languages, but can also be used to target a specific demographic or brand.
If your current plan supports only one language, you must upgrade your plan before you can set up multiple store views.
If a store has multiple views, the “language chooser” in the header can be used to change from one view to another.
Changing the Store View