
Weights  | Blended Weights  | 
Aim Ready Pose Data  | Ready to Aim Pose  | 
Aiming Pose Data  | Aiming Pose  | 
Input Blend Pose Layer Setup  | Bone layer settings for Blended poses  | 
Pose Data

Idle Anim Pose  | Animation poses in various states  | 
Walk Anim Pose  | 
  | 
Jog Anim Pose  | 
  | 
Run Anim Pose  | 
  | 
Crouch Anim Pose  | 
Anim Pose

Anim Pose  | Pose animation used  | 
Explicit Time  | The time position of the animation  | 
Input Blend Pose Layer Setup,Modify the blended bones according to your own needs

Explanation:
https://docs.unrealengine.com/5.3/zh-CN/animation-blueprint-blend-nodes-in-unreal-engine/

Consider the following bone chain:
Here’s an explanation to the Blend Depth if you set it to a number greater than 0.
BoneName = Spine1
BoneDepth = 3
The blend strength of Spine1 will be 33%, Spine2 will be 66%, Spine3 and EVERY bone that is a child of Spine3 will get the full 100% blend strength.
The Bonedepth value basically allows you to get a smoooth blend… Compared to just setting it to ‘1’ where it will have all of the child bones have 100% blend strength.