Reversing a route

Is it possible to reverse a planned route?

Have just planned a route and the route has reversed the original route.  Is there a way of getting the original planning back.

Downloading a GPX file to a Garmin Touring Edge from a Macbook

How to I transfer a route from Cycle.Travel to my Garmin Touring Edge Plus from a Macbook. I have downloaded the route from Cycle.Travel to the Macbook but cannot find a way to get it to the Garmin.  Any suggestions would be appreciated.