Lets you convert a series of curves in the scene or from an Alembic cache file to interactive groom hairs, guides, and wires. You can then sculpt the hairs and add modifiers to them.

Lets you choose how the resulting hairs get animated when the surface of the bound mesh deforms. When on, the roots of the hairs follow surface deformations on the mesh. When off, the hair animation is influenced by a surface projection of the source curves.
Enable
Curves to use selected curves from the scene. Enable
Cache to use curves contained in a Alembic cache file. The curves can be static or animated.
The list of added curves display under Input and Curve Name.
Click the browse icon and go to the location of the Alembic cache that contains the curves.