Yes, they're limited; they are, really, stacked one on top of the other. I did not have enough time to do things otherwise, but I'll be coming back to this later. The original goal was to have a complete, closed, circuit, on which a wooden loco would be placed, to puff around, with maybe a station and some toy trees. Again, lack of time, but it will get worked on shortly. The week went by so quickly..!
Thanks for trying it out, and for your comments; meanwhile...
Have a great day.