English again to make things easier...
I love that function to insert a new waypoint into an existing route by selection a section and dragging the red/white-dot to it's designated position.
Unfortunately this isn't possible when using the TomTom map. Bug or feature?
For insert a new waypoint into a existing route you can go back to Google Maps, inser waypoint, and go back again to TomTom.
Yes, it is a very good suggestion, thanks.