limit court reservations to 1 per day regardless of if the player makes the reservation or is just included

The following is from AI:

Right now, CourtReserve only has two relevant controls for this situation:

• Reservation count per day (blocks the member from making a second reservation themselves).
• Concurrent reservations (blocks two reservations that happen at the same time).

There isn’t a setting that prevents someone else from adding a member to a second reservation later the same day when the times don’t overlap.So in your setup, there isn’t a way to stop Player B from booking 9:00 AM and adding Player A if Player A already booked 8:00 AM.