Questions on NvCloth (UE 4.16)

Hi there
I tried UnrealEngine 4.16 with NvCloth’s verification.

I have some questions.

① Is Ragdall enabled during simulation?
Is it also included in the PhysicsAsset?

② Detailed expression by folds etc. of the skirt
The back side overlaps the surface …
There was a latch in the previous version, but is it currently being processed?

Please responce to me.