Volumetric Clouds 4.25-How do I use Detail 2 settings? & best way to add layers of clouds in one BP?

Hi All, thanks for any help!

Using the 4.25 Volumetric_Cloud blueprint. Where are the Cloud Detail 2 & Detail Amount 2 settings hooked up, as they do nothing in Details Panel?
Is this just a leftover where they were going to allow more layers? Or is this something I can tweak somewhere?

In one single BP is it possible to have 3 layers of different clouds with different noise patterns?

Also would like to add my own curl noise and/or move the Cloud Mask, how would I go about that considering everything is in a .ush file?