After a few years of use:
Too bad the forum from Garmin is in English even help pages as well. You have to fend for herself.
As for how the function exclusively take the highway and right there you have a great interest to read the manual and especially try to understand. I eventually found but it's really not explicit. It is between these two parameters it is and the more I do not even know I've already forgotten.
Faster Time-calculates the fastest routes to be traveled, the distance may be longer.
Shorter Distance: calculates the shortest routes in terms of distance, duration may be longer.
Admit you have to be psychic to choose between any highway or not, right?
I discovered today only if we want to go with a steeple to another without entering the destination address and what is separate. So obvious that I have not seen him for several years. Yet it is very practical.
Thank you
