I'm new to coding shenanigans and was wondering if there was a way to increase the spawn rate of ores and structures using NBTEditor. Ive been able to change player data, spawn "illegal" enchanted items, and other fun things, but I havent been able to find a way to change the way the map generates. Is it even possible to edit the spawn rates of iron/copper/etc without downloading/creating mods? Only looking to either change chunks that either havent been generated or on a brand new world. Thanks in advance!

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This was possible before 1.13 with use of the customized world generation setting, but has now been removed in favor of using data packs to change generation. To read more about creating data packs, read this entry on the unofficial Minecraft wiki.

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