Originally Posted by DRTBYK
If you have the same map versions for both BaseCamp and the Montana, you can create an Along-road route in BC and it will not be recalculated on the Montana. If your Montana is not operating in that manner and you are at v4.20 then I would consider calling Product Support.
And if you switch it from along-road to direct just before sending it you the Montana you will be able to select the route on the Montana and change it back to a along-road routing and be able to edit the map on the Montana. I've had the Montana always recalculate the same original along-route routing.