Hamilton County/ Cincinnati Area

I own a Pro 96 Scanner and live on the east side of Cincinnati. I was wondering how local listeners have the Hamilton County & Cincinnati system programmed into their scanners. Hamilton County is a larger system with all of the local and municipal agencies. Both systems are included in the data base in the same area. I realize each system has different control frequencies and such. Is it easier to just lump both systems together or is there a way you can separate Cincinnati PD and FD from the county agencies. I'm just looking for input. Thanks.