Currently, speleothems generate in great quantity on the surface of the Overworld, where that surface is made of stone (e.g. Extreme Hills) and the y-level is below ~70. I would like speleothems to generate only in actual caves, so I'd like to request a configuration property, possibly in the speleothems.dimensions section, which would allow users to define a y-level range where speleothems are allowed to spawn.