I'm using the appointments app to allow customers book appointments for a gym with a custom personal trainer, how can I make a personal trainer be booked for more than a personal trainer per appointment. I know that it can be done ia resource is being booked, but I need that every personal trainer has access to his own agenda and as an admin I need to be able to see everyone's. Also I will like to know if it's possible for a secretary force an appointment even if the personal trainer agenda is already full