I am planning a 1200 mile trip via motorcycle and when to add waypoints every 175-200 miles for purpose of finding gas stations. Is there an easy way to do this?
The best way would be to automatically add a waypoint every 170 miles on the trip route so I could go to each waypoint and add a fuel stop. Seems the easiest way that I have found is to hover over the route with the pointer, find the mile point that I want and search for a gas station on that zoomed area.
What I'd suggest, I have a Zumo, is to create your route - don't worry about fueling stops at this point. Transfer the route to your device. Now I know this will work on a Zumo, I would begin navigation of the route then select to search for gas stations. The device will list possible candidates - select and then find the same spot in Basecamp. Repeat for the next and so on. Not totally automated but it is one method I've used along with what has been suggested.