[lammps-users] How to construct a half liquid and half solid supercell?

Dear All,

I like to construct a supercell with a half to be a liquid and another half a solid.
Since I am very new to LAMMPS, I do not know how to do this. Can anyone help
me out? If you have an example of such a supercell, would you please send it to me
or post it?

Thank you very much in advance!

L. Wang