That's pretty cool! I didn't understand what you were saying, so I hope you were positive about it. If you have suggestions to make it better let me know.
I saw you used it together with bots, which is def possible, though the main idea was to make something for easier track-laying for early game, before you have bots. But it's def still useful once you have bots too.
One thing I also want to mention is that the mod also works when inside a locomotive. So you can ride in a train over the tracks, and it will build the tracks in front of the train too!