Navigatore

Hello, great job with this app but i really need one more option... In Lombardia have build a private highway called Pedemontana (A36) that is more expensive than the regular highway that also serve to reach the same place i have to go so, can i have the possibility of choose to totally exclude from my itinerary the private highway?
Because during the trip the navigator try to make me go in part of it mixing the two highwas!
Thank you