GA-traffic: generic ATC callsigns; unrealistic routes

  • Hello to all.
    I am using TG with Prepar 3D 4.5 and I am mostly satisfied with it. What i dont' like are a lot of generic ATC callsigns for GA flights like N11111 ; N44444, C-FFFF or I-DDDD. It's very annoying when listen to ATC and hear such callsigns, especially at busy airports. Is it possible to get more variations here?
    Another thing with the GA-traffic are far unrealistic routes as South America - Italy for a Cessna Skyhawk. Is it possible to create more realistic routes?
    Thank you.