Super long track, i have the free version and the amount of work put into this is impressiv to say the least. I am having a fun driving, just trying cars on this track and not many tracks gives me this simple but pure type of fun. Great job on this mod, truly unique!
Any layouts with 'Online Layout' are for Server / Practice use only.
There are text documents in ALL layout folders, giving more info, for server admins (pit box number / locations) etc
Also refer to the 'Layout Guide' this lists all layouts which support AI use.