Hi, Blazer9:
I understand, and in fact, I use the signals placement in the way you describe in you answer, but I decide to put the sign in the “left” side or the “right” side of the track in the very moment that I am BUILDING my rail. And this is a “static” placement.
When I say “static” I mean that the signal CANNOT be changed while I am in “play” mode (just watching the trains “running” in a completely built rail), as in opposition to the behavior of controls, that are just “programed” while BUILDING the rail, but they “execute” their programation while “RUNING” the game.
And that is exactly what I want: imagine a long horizontal piece of track. The engine must start its movement from left to right, then stop before the end of the track and after that, return its way back in the same track from right to left.
So, the question remains.
I apologize for my “medium level” english. If I didn’t make myself understood, please inform. (or even if I didn’t understand your answer) 😳