It would be useful to be able to disable or change route preferences for a portion of the trip. I am planning a long road trip to Alaska and back. As a general preference we want to avoid interstates, ferries and tolls BUT there are some sections where one needs to travel on a highway or toll road to avoid adding a lot of distance. It would be nice to be able to change the settings for just the part.

It should have a way to cancel route preference between segments. I want to be able to apply different routing avoidances between each set of waypoints.