Request for help on how my ETCS France script works

Hello to you I am just starting in the script on TSC and I created some lines of an ETCS script for my TGV project but I would have a lot of questions to ask you. I have the basics of LUA but not the knowledge of TCS completely and my Lua fias Line I would like to know where my lines really go in another Lua etc etc if someone could help me it would be super Nice