I think it would be great if Appointments+ would allow multiple bookings per time slot. I get that right now it's for 1 on 1 kind of stuff but there are many reasons to add multiple bookings per time.
For instance someone could book multiple people for a class or workshop they're teaching and may have space for a certain number of people. Or what I'd like to use if for is booking deliveries of a product where there are multiple delivery drivers that could be making deliveries every hour. But I had to go elsewhere for now on this.
Adding this feature would make Appointments+ by far the best booking plugin out there.