ok im new to the fms sim. but i started downloading some more planes for it but i noticed some of the planes dont work they just sit there and when i throttle up nothing happens they seem like there at full thottle already when i load them for some reason. but they dont move so they cant be at full throttle. how do i fly these planes? the gliders do the same thing they dont move. also how do i add landscapes? when i try copy and paste the stuff in like i do for the models it gives me an error when i go to the landscape i added and then i cant play. everytime i open the game after that it gives me the same error and closes untill i reinstall whats the proper way to add landscapes?