I didn't figure this out myself! I got some information from Squirrel on youtube, then JamesAMD on Steam tipped me off to a comment by Guillaume201 on Youtube.

I decided to put this together so the information would be easier to find. But I take no credit for the ideas!

Copy and Paste the GPS coordinates you get from Google Maps into the "Search" field on the world map.

It seems to support both formats found on a Google Map page such as:
43.055231, -76.160241
Or
43°03'18.8"N 76°09'36.9"W

Paste this info in the search box and you will see a custom pin option displayed. Click on that pin and the map will zoom into your location. You can now set it as a departure or destination point for your trip.

You are done!

We will quickly cover how to use Google Maps to get the Lat/Long information to use in the Sim. Some of you may not be familiar with this process, but it is very easy.

Once the pin shows up on the Map, you can right click on it and select the coordinates shown. The coordinates are now copied to your clipboard.

You don't need to use a pin, you can right click anywhere and use those coordinates instead!


Go into the Sim and paste the coordinates into search (on the left under the plane)
You will see a custom waypoint option. Select that.


it will zoom into your custom location and from here you can set it as a departure or arrival point for your trip.


Hope this helps.