About kspace_style command

Hi,
I’m simulating a non-orthogonal box of alpha-quartz. So I used the command kspace_style ewald for the summation of Coulomb interaction. I found in the mailing list someone said use: kspace_style ewald/n for a non-orthogonal box. But I think this command is no longer exists. Can you have some suggestion?
Thanks.

I found the respond. Thank you.