changing some world gen settings (caves, oceans, rivers, mountains)

i'm looking to make some world gen changes to make my worlds a bit more to my liking. i tried using the misode customized world tool and i assume the files inside the zip i generated there is what i'd need to mess with to get what i'm looking for i'm looking to reduce, but not remove 1.18 caves (best case scenario is to halve the amount of cheese style caves but remove noodle caves entirely) next thing would be to reduce the width of rivers to about half the size another thing is to just make oceans a bit less common overall finally i'd like to make the world gen a bit less mountainous- i think it has something to do with erosion levels but i'm not sure how to get to it i was able to change the amount of sloped_cheese caves by messing with some code in the overworld.json file "argument2": { "type": "minecraft:add", "argument1": 0.178125, "argument2": { "type": "minecraft:range_choice", "input": "minecraft:overworld/sloped_cheese", "max_exclusive": 1.5625, "min_inclusive": -1000000, outside of that i'm really not to sure what to do- maybe you all might be able to help?