I believe so. You can rename the track in Race Studio 3, or even just editing the name in the file once you’ve uploaded it.
You can use a ‘beacon shift’ feature in Race Studio 2 to alter where the s/f line is (which is represented by the beacon). It’s not the best way to do it perhaps, but a method. Another way you can use is to use the “GPS Lap Insert” Feature if you have someone elses data with the correct track map and s/f line.