Support Export of GPX Files including Garmin's Route Extensions
Some (but not all) Garmin vehicle GPSs with recent firmware support importing a route with a predefined path between the route points. The intention of this is to allow routes to be created in Garmin's MapSource software without the GPS recalculating the route on import. For example, it was introduced in version 3.80 of the firmware for the Garmin Zumo 660.
I wrote a (rather crude) website a while ago that allows routes to be produced using Google Maps and exported in a format that can be used on these Garmin GPSs so that routes can be dragged around and customised rather than relying on the auto-routing. It was very simple to implement and seems to be quite popular judging from the number of "thanks" emails I get!
Is there any possibility that this could be added as an option to the GPX export dialog in Locus Pro? This would allow routes to be planned while on holiday and they could then be downloaded to the Garmin Zumo for the next day's riding. I tried using the track export from Locus but this doesn't work very well on the Garmin. Using the route export works, but produces a very large number of route points and, if a road is closed, you have to manually remove points from the list after getting back onto the right route - this is very painful.
To show how simple the format is, I've written a small python script that takes a Locus Pro exported track and converts it into the Garmin route format. This is available on bitbucket. It works well, but is a bit of a pain to use on an Android device.