Ok so you are at a flight path and you accidently clicked a wrong fly destination. Your all like aaw man now i have to fly to that damn flight path 10 min away :s.
Dont worry :] if you missclicked your destination (and there is atleast one more fp in the route) you can relog and you will stop and the first fp on the flight route. And you can start your new route there to the right destination :]
Hoped I helped someone there 0=]