How to simulate CAP on-station relief?

[2circle]

Would anyone know how to enable the following scenario in the ME?  I'd like to place a couple of F-14's orbiting on a CAP, and when the player (as part of a section of fighters enroute to relieve the off-going CAP of Tomcats) comes within a set distance of the F-14's, have the F-14's RTB, so that the new section of fighters can assume the CAP.  In other words, have a group go from CAP/orbit, to fly to the next waypoint in its flightplan based on a trigger?  Thanks!

[AGM2017]

When you set up the orbit in advanced actions there should be a button for Stop Condition. Click it and choose Flag whatever number is True. It might be a check box, in which case the box being checked = True. Then create a zone anywhere on the map with whatever radius you want. Finally, go to the triggers screen. Add a new One time trigger. The Condition should be Unit In Moving Zone using the player unit, the lead F-14 that you're relieving, and the zone you created. I don't remember exactly what you want in the 3rd column, but I think it's Flag On and use the same number as you used for the orbit stop condition. If Flag On isn't a thing then look for a Set Flag and set flag whatever number = 1. This is also where you could add a Message to All or Message to Group to display text on the screen, play a sound or radio message, or anything else you might want to do so you can tell that you're in the zone and the other flight is leaving the orbit.

If you don't need to be that specific with how close you are to the other flight, you could place the zone along your planned flight path and use Unit in Zone with the player plane instead of Unit in Moving Zone.

[2circle]

Hey that worked perfectly!  May I trouble you with an additional question?  Now that I have the new section on station, I want them to just set up an orbit until a specified time/BINGO fuel, during which I'd like for them to engage bandits in a specified zone.  I found the advanced waypoint actions options and built an orbit over a waypoint in their flightplan, but the AI fighters didn't bother to engage any nearby bandits.  I then added an enroute task of "search then engage in zone" and defined a zone that was transgressed by numerous bandits, but they never engaged any of them.  Might you have any additional guidance to help me accomplish my goal?  Thanks!