this is the bit that is stumping me….
because…..? What is the issue with this step?
Are you on a computer or using your phone?
I did it via my computer at work, so it might be different on the app if you are using your phone. Or it might not even be possible on your phone using the app.
But – on a computer all you do is find the route/activity you want to create a course from, select it so it appears full page showing the main map image etc. To the top right there is a small cog, click on that and choose ‘save as course’. It should be pretty straightforward from there.
If you are trying to use the app & it isn’t working – you can log into connect.garmin.com using your browser & do it that way (create the course) using the same method.
Presumably, once you have created the course via your browser, it will show in the app as a course & you can send it to the device.