How do I stop Garmin Explore app from also creating a route from an uploaded gpx track?

Whenever I copy / upload a gpx track file that I've created on my android phone through Garmin Explore to my Montana 700 the Explore app also creates a route.

How do I prevent the additional unasked for route to be generated?

We are in the outback, with no cell / mobile / wifi service, there are no routing capabilities so everything we use is in track format as we cannot have the risk of going in the wrong direction. 

We have many tracks that we are actively managing on a longer multi-day journey, adding additional unwanted files to our units adds additional unwanted risk.