Add the option for some markers to instead of appear on the location marker list, to be placed on the map. (in addition to the list, which is useful too)
This was something I thought when I was in manufacturer mode, as many times I had to jump back and forth but the locators on a list were a bit confusing, it would be nice to have one in one train station that when you click it jumps to the other end of the train for example, kind of teleporters through the map.
Not sure if very useful in general, but for the manufacturing mode I think I would have used a couple (for example I would have added “buttons” to go from the assembly area to where the shapes used there come from and back when they were distributed)
Great game!