Is there a guide somewhere on how to do it? I am basically wanting a normal vanilla world but eternal day and no weather. I'm not bothered about anything else as I already have separate dense ores & crystals worlds. Every time I create one it adds on extra stuff and makes the world unstable. Eg. I choose autumn woods, meadow, medium biomes, standard lighting, normal sky colour, villages, standard terrain, eternal day and no weather. But I have mining fatigue and it's added mountain taiga, white fog and blue fog. I chose another : autumn woods, meadow, small biomes, standard lighting, normal sky colour, villages, standard terrain, eternal day and no weather, but I had random lightning strikes all the time and it added plains, green sunset, black sunset and strongholds. Anyway know what the craic is? I just want an eternal day world with no weather and no instability. Mystcraft wiki is useless.