I think there should be a setting to add terrain to your res! It can make your res look just liek any normal biome with hills and lakes, etc... Even biomes like desert and mesa. I also think there should be subzones you can draw out on your res. instead of a circle, there should be ones you can draw out. Thanks in advance!
-1 from me. You can always build terrain if you want it. Changing the terrain with a command would be spawning in large amounts of blocks. Subzones are a square/rectangle. not a circle.
Maybe different biomes for subzones up to a certain number per res? But not terrain generation as that just gives free blocks. Nothing's stopping anyone from building terrain.