I would also like a version where they are buildable.
Maybe even a research that makes it possible ingame, for example, purple-rank research to remove and place them, and gold-class research to make them. So in the beginning you are forced to train around them, and later you can adapt them to your factory plans. (maybe as 3 different options in mod settings)
Bugreport?
rotation seems to work almost outside the big factory, 1st time i try to rotate it, it even rotated when i tried to rotate a train almost 3 blocks away.