I got a big problem and i don't find any solution.
The image to understand...

I want to use autorouting to make the first part of the way.
I'm going back my way from the COL DU LAC CORNU to the green waypoint DESC WP1. And next, i want to use a direct portion, linking DESC WP1 to Telesiege LAC CORNU.
Is it possible to mix, in a unique way, the autorouting and a direct portion ?
Thanks a lot