This link apparently is no longer valid. It takes me to liftoff-game.com/support and no pdf file was downloaded. Is there still some way to download this pdf, or is there a professional quality video available? I tried using the race editor but it's not very intuitive. I saw another post where a race editor user said there is a high learning curve. If no tutorial is available, perhaps one could be created? Thanks

as the original link doesnt work here is a link to download the document through the wayback machine:

https://web.archive.org/web/20180619091726/http://liftoff-game.com:80/tutorials/LiftoffRacesTutorial.pdf