Well hello there I see what you have added, without telling us, DTG New 'next station' announcements confirmed? Only for the 425 or maybe for all trains?
It is also in the 422, here you can also click on the buttons but, like the 425, nothing happens. This might get interesting in the future
This literally means nothing. They're just clickable buttons which don't actually do anything. The Class 166 was the first to have clickable buttons for inputting announcement codes and guess what, we still haven't got anything for it.