Assigning zones

[Haz]

It would be nice to assign more than 1 security type to a room. I currently have my max and supermax in the same area, separated by their regimes. I want them to both use the same canteen at different times of the day, as well as the common room and infirmary. This means I have to make them open to all prison types. This leads to the guards are prisoners acting like morons. Guards routinely escort my medium security prisoners to the infirmary in the max/super max area

[Gangrene]

What would you suggest as a solution? An ability to apply any number of types to an area. How would that look? Striped with the various colors?