All new train building system, for release soon. The instructions for each tool are listed at the bottom of the screen after selecting it. In addition, you can only copy the tracks by the spawn, they're delete/move protected so they'll allways be there when you need them. If there's too much clutter in a server you may have to delete some of the previous player's tracks who have left the server, as they aren't cleard automaitcally.
Sorry, accidentally removed this from my places and I can't put it back. Just download the tools from my models (I have a set containing them) and stick them in one of your places if you want top use them.