Data generator tool for ternary system

Hello everyone,
I have used Topotool to generate LAMMPS data file for a composite material Mg(OH)2/LiNO3. I now wish to add a third component, BN, to make a ternary material: Mg(OH)2/LiNO3/BN. Is it possible to generate a data file for this with Topotool? If so, or not, can someone suggest a resource (tutorial) for this, please? Thank you.

This is not really a question about LAMMPS and thus off-topic for this part of the forum. TopoTools can do whatever its documentation says it does and how it says it can do it. Whether that is suitable for your needs is for you to work out.