When you are on the Map Page, push the Menu button, select Setup Map in the drop down Menu scrolling down with the rocker, and push the enter button. You will get a map page with six icons across the top. Select the (i) icon using the rocker, and push menu. You will get a drop down displaying mapping options. Use the rocker and enter button to select the option you want.
If you have City Navigator installed it will have priority on other products. So if you are out in the bush you will want to Hide City Navigator.
There is another route by going the Menu Page, select SETUP, select the MAP icon, and you will be at the map page with the six icons described above.