@pharmaweb, thank you so much for you happyness to meet me here.
As I understand you are asking for something like EPT (Enhanced Position Technology) function because you want to simulate a progression of the vehicle instead of unit-locking, but i think this is not present at all in the navigation software and it seems to be very hard to create it. My best wishes.

@all, in a few days I will receive a second navigation unit and I will sacrifice it for connecting to the internal hidden USB and fully dump the eprom.
My best wishes to myself.