Years ago, you could fly an aircraft and then assign that track to an AI aircraft and you could do it multiple times. So after recording yourself 3 times, you could replay 3 tracks and fly a fourth aircraft.
i understand that if you were to mix aircraft type it would be a problem and understand the issues with track teplay. But for someone running their own server for replay and teplay the same aircraft this would work. It would be a lot of fun and it would be a great training tools and mission tool.