Once you have created a Control Rig Blueprint, you can use the Control Rig node inside the AnimGraph of an Animation Blueprint to augment animation data with the content you provide in your Control Rig Blueprint. This enables you accomplish tasks like blending animation data with the contents of a Control Rig Blueprint or layer the content of a Control Rig Blueprint on top of an existing animation data.
The example below illustrates how you can use a Control Rig Blueprint to instruct one Joint to aim at and follow another Joint. With the Control Rig created, you can then use the Control Rig node and incorporate the Control Rig contents into an existing Animation Blueprint that is playing an animation.
For this example, we are using a new Blueprint Third Person Template project.