I'm afraid SUSSAMB you are confused between Courses and Activites. I want to import Courses not Activites.
Courses are planned routes that you can navigate on your cycle/run, Activites are cycle/run events that you have already completed. In Garmin Connect they are listed as different items.
Sorry, I assumed you at least knew part of it and just couldn't manage the 'import' bit ...
To import a course you have to:
1) Convert the .gpx course to a .gpx track 2) Import the file as an activity 3) Open the activity 4) Create a course from the activity and name it 5) Delete the imported activity 6) Delete the imported activity from all auto-sync services you have set up too (Strava etc.)
Is there (even now) no simple way to (re-)import **courses** (format: xxxx_course.fit) formatted by an Edge (or even originally in Connect and then loaded over to the Edge) directly into Connect?