I am in the process of planning a cross Canada flight East to West. I would like to plan overflying specific airports along the route, but Navigraph does not allow that as it seems that airports can only be departure and destination but not in-between - why is that?
In real life I can plan a flight that overflies an airport why not in Navigraph?
See attached print screen, the red errors are airports.
If I am missing something in my planning please advise.