2. I will finish. There was something like bogies. I just don't know if it would be better to draw the phantographs on the cab car (Maybe it's easier. Since i dont know anything about coding.) or to draw it on a middle car (like in real life)
I just dont know would it be possible in TT. Theese EMU's have phantograph (motor car) like this:
Usually graphic sets try to code these things realistically. It's a bit more complicated, but considered worth the effort in general. If you still want to keep both options open, you could make all those sprites. You could always leave a copy of an plain roof inside the image, incase you ever need to remove / move the pantograph or other details on the roof (such as airco units, which are usually found on the roof too).
I dont realy know how to draw the phantograph so this is it.
I once drew some.
You can use them, if you want