Technically Scooby has 2 unload buttons It's a dual dispatch to send to the load platform But close enough... all of those controls shown in the simulators basically are what the supervisors would use when controlling the ride in manual compared to day to day Automatic.
I've attached a rough copy of what the Scooby Doo Spooky Coaster load console looks like.
Station stop is used when a staff member is having to pass something through to the unload dock or having to step into a car to prevent anyone from dispatching. This can be initiated by either Load, Unload or the Supervisor but can only be deactivated once all 3 mushroom buttons (one at each of the 3 OCC's) are released and the supervisor resets it.
Car 1, 2 and Fault are not physical buttons but flashing lights that will flash if there is a fault (or station stop activated, in which the door opens between platforms automatically for a station stop, but NOT a fault), and the car lights will flash for each respective car until they are locked sufficiently.
Track Crossing is for when a staff member needs to cross the track in front of the station to the load side of the platform, it activates a light on the control podium and above the window where the main control panel is (a small green dot) to give staff the all clear. This can only be turned off by the supervisor, but switched on from either OCC. I did forget to put a flashing light that is "Must Send" which basically means that the loader needs to send a few empty cars to clear a backlog in the main ride.
Back in the day when the ride actually ran with all 18 cars on the circuit (normally runs with 13 - 16 cars now) this light would almost constantly be flashing, and if a backlog is not cleared up in time the ride would basically crap itself and 10-7. Most of the time it would only be a minor delay with the female voiceover going off... but more than often if it was really bad the ride would e-stop and the male voice over would go off... and the ride would then be evacuated.
Obviously the MOCC (Main Operator Control Console) has much more buttons, such as manual control of each zone... the lift, turntable etc. These would not be used in normal operation, and only used in the event of a fault generally. The scooby supervisor really doesn't need to actually do that much apart from watch the monitors, the loader and unloader have full control of the attraction.