spline editing

I want to make a personal dp for amplified terrain with a little less factor (im presuming that's what causes the extremely common floating islands) but i can't seem to find any tools online
the misode generator for factor is almost 1000 lines long and I see roughtly how it works (takes in ranges for continentalness, followed by erosion, followed by ridges (folded)) but the layout isn't very user friendly as i don't think you can collapse areas like surface rules
snowcapped also has a spline editor but it's also pretty confusing as it has a bunch of lines defined for certain erosion / continentalness values but theres no documentation on how it works, theres no setting for weirdness (i think), and i tried checking the difference between minecraft:overworld and minecraft:amplified but i saw no difference in splines
is there any way to edit splines intuitively or do I simply have to use trial and error with hundreds of lines at once?