I can't find any advice on how to create alternative layouts of a track (this is for rFactor). For example, at Silverstone they have the GP track, the International and the National. When you select any of the tracks in rFactor, the actual track layout is basically identical (maybe a few cones have been placed to indicate which part of the track is in use) - it seems to be just the Centerline and Fastline that are different. So how do you create a new Centerline (for say a link road between two sections of the full track), while retaining the existing track? I have managed to create the link road, by creating a new open track, but cannot figure out how to create another centreline. And how do you export the different layouts to rFactor? Thanks for any help.