Been working on updating CloudScape with some basic per Actor animations. Individual cloud actors can now be given a rotation and growth over a set period of time or given a spline path to follow in real-time. Combined with some panning volumetric noise you ca get some really great looking motions.
You can check out CloudScape here:
https://www.unrealengine.com/marketplace/en-US/product/cloudscape-volumetric-cloud-library