I really don’t understand how simply being able to change the distance between the observation point and the aircraft can be a problem. The coordinates of the point of view are one of the most important variables that you define in a mathematical model. And the functions that allow to quickly switch between the absolute coordinate system of the model and the relative system of the observer are the most important processing functions that the developer must create. This suggests that this simulator is based on a mathematical model created by others, of which the current developers have little control. Unless they have just some serious problem with geometry and trigonometric calculations. But if this is the case, every further request is useless.