Simulation using ellipsoid particles

Hello,

I've built LIGGGHTS with the sphere package but have problem defining the pair_style between them. I checked the online documentation that the hertz contact requires torque and angular velocity given by atom_style and also per-atom radius, which I have no idea how to define for ellipsoid. I have not tried the hooke one yet but from the documentation I think it also only works for spherical particles. Any suggestion is greatly appreciated!

Thanks,
Liuchi