First sorry if this is a double up. I couldn't see it already.
Could we look at the possibility of Ambulances already on (Low priority) jobs showing up in dispatch still for higher acuity jobs.
Eg. If I send an ambulance to a Category A or B patient and a C, D or E then comes in it would be good to be able to re task an ambulance that's closer but on a Cat A or B call. Then you re task the A or B job.
Don't know if its possible or easy to implement but it would certainly add to the realism and reflect real life practices.