@ rob86

Glad you made it! Don't think it is going to be very hard. As SakCyb suggested maybe a transparent layer is not a bad idea. I have noticed that when connecting roads of different maps to have a good routing between them it is very important to manage to fit the roads. If the roads are not fitted correct it is not making correct routing. Also it is important the priority of the maps. Unfortunately, that option is not possible to be made in MPC but can be made with gmaptool. As I am thinking now maybe using custom polylines is better.