adding extra course points like connect.garmin

Hi all

I plan all my bike trips with basecamp because i don't like the routing on connect.garmin + I can search some interesting stops on the route.

On connect.garmin there is a possibility to add extra custom course points that wil warn you along the way.
+ that wil generate a new page on my Edge 830 with all points + distance and time to that point. 

Is there a way to do this in Basecamp ? 

Cheers

3S

PS I already tried with waypoints + Javawa GMTK to convert it but my Edge crashes over and over and over.