How do I represent the return trip. Do I need to create a new trip from my destination back to my starting point? Thanks.
It’s really up to personal preference! You can create a new trip for the route back if you find it’s easier to organize your stops that way, or you can make your trip a round trip and continue adding stops.
If you want to test that out, you can make a copy of your trip and play around with the copy to see how it looks when you make it a round trip.
If it’s a long trip, just remember the maximum number of waypoints per trip is 150, so if you think you might get close to that then it might be best to build the return leg as a new trip.