Toggle at create menu to turn a world void

Add a toggle that opens a sub menu with structures per demension asking to generate or not and spawning you at spawn with intact biomes and chosen  structures village, dungeon, stronghold, fortress.Ect but without the other blocks end portal  only or intact stronghold your choice  but minus a spawn area void  leaving biomes intact spawn in plains 20 blocks away a river biome no water or land or a tundra that snows or ocean  where fish spawn  a fully functional biomed void world. Also toggles for end and nether options mabe keep spawn radius 5 blocks intact for starting platform.