In T177842#2544777, @sileed wrote:

the carnival areas are all painted with usageflag "lunapark" in the areaflags.map file (along with many other locations painted with other usage flags. Use economy editor and files from BI github https://github.com/BohemiaInteractive/DayZ-Central-Economy/geometry dash/tree/master under CETool to edit your own or just to look at what they did