Feature request: reversible routes

[RDMurray]

This is something I ran into recently. I created a route by dropping markers on my way to a destination, hoping to be able to follow it back the other way. This would be a really useful feature!

Voice vista does already have the ability to reverse routes, but it works by either creating a new route with the order of markers reversed, or you can make what they call a circular route which appends the markers in reverse to the end of the original route.

I think it would be better if there was an option to follow any route in either direction, so in addition to start route, there would be "Start Route in reverse".