When I click on one of your build in POI, I get routing options at the bottom of the info window like set as start/destination/via or extend route.
When I import POIs from a external GPX file and show them as an overlay, I just get like the name and description of the waypoints in the info window. Usually I then just right click on the waypoint and use the routing options from the context menu. But obviously this is not using the location of the waypoint. This way I always need to zoom in on every waypoint to make sure they are matching with the location of the imported waypoint.
Would be nice if you could just add the routing options to the info window of imported waypoints.