In several counties are fire districts, Say like fire companies in different districts, All you have to do is click on the District and it brings up the list of stations in that district. Any Fire, Police, and EMS Station you want in that district, It's there. Just like the Dispatch Center. But the Districts would be within the designated Dispatch Center. So that you won't have to search for ten or fifteen minutes for just one or two stations.
For example, I have 4 Fire Stations, 3 EMS Stations, and a Police Station split in three separate locations in the town alone which would be a district. I'd want to be able to just look them up alone without any other station getting in the way. See what I'm getting at here?
Basically it's a mini Dispatch Center inside a Dispatch Center.