I think the issue is that CS is substituting commands for different animations, which is fine. For example, sure enough, when I hit Shift+E 2 the escape door opens. Is there any way to reassign that to the first second passenger door through altering some file? Between being able to use GSX with the second passenger door and having the escape hatch, I would choose the former, since I am such an excellent pilot flying such a well-designed and maintained airplane I have no need for an escape hatch.