How to build BNNT in LAMMPS

Deal lammps users,

I want to study tensile behaviour of boron nitride nanotubes in LAMMPS. But I dont know create BNNT in lammps. Is there any addon/plugin that I can use to generate the geometry of BNNT.

Thanking you.

Truely,

Rajesh

Deal lammps users,

I want to study tensile behaviour of boron nitride nanotubes in LAMMPS.
But I dont know create BNNT in lammps. Is there any addon/plugin that I can
use to generate the geometry of BNNT.

http://lammps.sandia.gov/prepost.html