creative builder mode-type world (improve super flat-world)

Well my idea is to create a new type of super flat world generation for people who want to build in creative mode. My idea is to basically make a super flat but the slimes are not generated, the day and night cycle does not take place, among other options that can help professional builders such as tools that are in the world edit datapack.

as I said it would be an extra option in the world generation like, the super flat or the floating islands

im from spain so I  apologize for my level of english.