If you are willing to pay for dbs studios walk and follow you can easily set and save the views you like to any aircraft while running fsx. You can use the software just to roam freely in the fs world as well but I bought it just for changing views. And if an aircraft dosn't have enough camera views to add more I'll just cut camera views from the default 737 cfg and  paste them to the aircraft I want and then use walk and follow to adjust and save the camera views as I want.