Thanks, i got it.
I just need to scan on Start the Graph, and every new Node is recognized, thanks this works.
Now i have a problem, and i dont know how to solve it.
I want to create an road/traffic system for my game, where cars need to drive from Point A to Point B and on the right side.
Travelling from Point A to Point B works, but i dont know, how to tell my vehicle to drive on the right side and not on the left side.