With trains with functional in-train DMIs that show the destination, would it not have been possible to make them scroll with the chosen destination? Full PIS announcements aren't a thing, I know - but for example on Class 375, would it not be more immersive if the DMI had scrolling text? "Welcome aboard this Southeastern service to [destination]." rather than the chosen destination being centre and static? - Scrolling text is possible as seen on the station DMI's.
