When I have marked several waypoints, I click "Export All" in the Waypoint Tab in Route
Manager. This makes me able to create a layer with all the waypoints.
If I later on want to add more waypoints to the same layer, I click "List contents" in the Layer Tab, and all the waypoints are listed in the waypoints tab. Then I add more waypoints, and again click "Export All", and chooses to overwrite the initial layerfile. But when i restart OpenCPN
only the newly added waypoints are contained in the layerfile!
How can I add or delete waypoints and routes to an existing layerfile?