Hi, i imported a gpx file, Tour de Flanders, (red dotted line). Impossible to remove this red dotted line. It remains in the Kurviger App and also on the planning on kurviger.de?
In addition to zaphod’s answer (thanks for being that fast 
) you find here a more detailed description regarding overlays:
https://docs.kurviger.de/overlay_manager?s[]=overlay#overlay_manager