There are MANY things that one CANNOT do: 1.) one cannot create crossings/flyovers/underpasses/tunnels... okay, but WHY not? 2.) There seems to be a Limitation of Anchor Points you can set on a track (I started a new track and in the middle of the work I got an error-message telling me that "no more/additional anchor Points can be set)... Frustration perfect 3.) It seems impossible to create REAL NARROW hairpins, even if you reduce the diameter of the curve. 4.) Apparently one can only use a underlying picture to redo a real course layout in the "Eifel Flat"-mode, I didn't find it in the other 3 modes! That reminds me of the good old times of the infamous "Arnold Palmer Course Designer" with which you could create golf-ourses for a PC-game. There was a thread in a Forum titled "What Do You Like Most About Arnold Palmer Course Designer?", where one of the members answered: "That I don't have to use it!" And for me now, the same goes for the GT6 Track Path Editor! Sorry... but done with this!