How do you switch cabin view on Railworks 2

If you look Dow on your right on the easy users thingy (it has 3 levers on it) there is a 2 boxes. The biggest one does camera mode. The cabin view looks like the front of a 2D train like you see on an OS map meaning Train station. If you don't have the easy users thing on your screen press F4 to turn it on or off. Hope this helps.