Biome generation options

Ad an option to select the biomes that are able to generate. For example if I want a world with only mountain biomes I could select meadow, growe, stoney peaks, and snowy slopes and the world would generate with only those biomes. It would be fun and add a lot to the game and it would be a realy good thing for example as chalanges and a more long term way to play the closest we have wich is single biome worlds.