A few days I checked again the NFSHS Tutorials Pack by FerrariMan (http://nfsa.ca/f2923) and I saw there was a track editing tutorial made by Fangio (which includes some interesting stuff, such as the basics on doing a point to point track with some trickery) but it was in German. So I decided to run it through a website called OnlineDocTranslator.com to translated into English; it did a decent job although it's janky here and there; I edited it a little further since it broke some image positions.
Here's (https://1drv.ms/b/s!AvPwRH4LsgD-hhzD5PrbxbZTyOIq)the link for the translated tutorial