I am having an issue with creating waypoints period. After making sure I have the 'waypoint (f4)' option selected, and the marker selected, I double click and no waypoint generator appears. If I double click again, the marker is de-selected. I tried it several times, it failed to work correctly. I switched out my mouse, to a newer one and had the same exact result. I suspect this might be some kind of bug. I am not sure if anyone else is having the same issue?