Freeintcam ROCKS! The older the loco model, the less camera attachment points are going to be included. Others have too many, imho. Best thing to do is flip through the camera views you have using '[' or ']', and settle on the least useful. For me that's usually the one where the POV seems to be looking forward from the back wall of the CAB centerline. That one I use the uparrow to push me head out the windshield (or even up to the cow catcher if you run an old American Steam Loco).
