I am suggesting to add the animated body movement for the lean out of the window. In my opinion it would be another small improvement toward realism and immersion. It would work maybe like when we are sitting and open window and if we are looking in the direction of the opened window button becomes available to enter the lean mode for that particular window. For the other side window we should stand up first and than go to the other side window and open it and than we would be able to lean through it also. Also if anyhow possible it would also be great to have simmilar option for the passenger coach windows. This would esspecially be great for routes like WSR.