A simple, but important, suggestion; the ability to choose a platform for different lines. Take for example Hauptbahnhof, having four trams queuing up behind each other on the same platform is a bit of a hassle when you have a bunch of high-frequency lines running through. Plus, if you have lines that start and stop at Hauptbahnhof (or other places that may have through-traffic), they should really have a platform all by themselves. That queue can become a lot longer in a very short time. I want the ability to choose which lines that use which platforms, so that I can space them out a bit. I'm assuming that the other platform will become operational once you have enough lines, but I really want to choose when designing my routes. Plus, it also looks a bit dumb having a platform full of people waiting for a tram that never arrives.
