Hello,

To add Ornatrix dinamics to the hair you have to convert it to Ornatrix hair. If you imported the hair as alembic curves, load the hair as Ornatrix Alembic from the File>Import menu, make sure to choose Ornatrix alembic as file import type. This will import the hair as an Ornatrix hair object. Then you can add the Moov operator to simulate the hair. 

Moov tutorial: https://www.youtube.com/watch?v=O5T0_66w5Fc

If you imported the hair as alembic mesh, use Hair from Mesh Strips to convert it to Ornatrix hair: https://ephere.com/plugins/autodesk/maya/ornatrix/docs/3/Hair_from_Mesh_Strips.html

Jeordanis Figuereo (Product Designer. EPHERE Inc.)