Thanks for the reply. So that is what Marshal Points do! I use LeMissionneur for my mission building and DCG for my campaigns. I highly recommend them.
Marshal points are not really a loiter point though... there must be a way to trick the game into forcing a waiting period before proceeding thru the waypoints.... I guess you could force planes to wait, say ten minutes, until another plane who is timed to "materilize" after 10 minutes arrives. I'll experiment a little and see what happnes.
I have another question: How do you force a plane to go thru a series of waypoints, say W1,W2,W3,IP,OBJ,W4 and then go back after the last waypoint to the first one and go thru all of them again? A plane that reaches its last waypoint just hang on it, doing a turn until it runs put of fuel.
Thanks!