Better, more user-friendly Superflat Customization for Java

Hello Minecraft Developers! I'm here to suggest a useful change to the Java Superflat customization.

Since Superflat is a popular world type, used by builders and non-builders alike, Superflat customization in Minecraft Java Edition could benefit from an update to enhance its user-friendliness. Currently, the feature allows players to generate completely flat worlds with custom layers of blocks. However, the process of configuring these layers can be complex and somewhat unintuitive. By making the Superflat customization more user-friendly, Minecraft can cater to a broader audience, including players who may not be familiar with advanced commands or intricate settings. Simplifying the process would encourage more players to experiment with Superflat worlds and enjoy the creative possibilities they offer.

The Superflat customization can be something similar to its Legacy console counterpart where it was easy to customize each layer.