Currently, I am stuck with free camera at the back of the train. Does anyone know how to get it too the front of the train. Thanks
Depends what cab you are in. If you are not in the cab with the nose (on the map), the camera positions are bugged. So free cam will not be positioned to see the train go past (you'll have to set it up manually each time). The other cameras usually remember the positions when you switch back to them.
My workaround to this was to set the default camera to free in the game settings. Then, when you click the right stick, you will see your drive-by. However, this will introduce the new problem of having to cycle through the boom views to get to the "typical" external view. Also, if you are going any kind of fast, you will only "just" catch the front of your train. Imperfect