How do I get Atom's LaTeX to use mendex?

I use upLaTeX for TeX Live 2018 and Atom's LaTeX package.

Preamble to index the document you are creating \uspackage {makeidx}
\makeindex
is written \printindex in the body.You can make an index, but the Japanese part becomes a lump.In other words, there are no empty lines between the words that begin with "a" and "i" (English parts have proper empty lines).

When I looked into it, I found out that the reason for making the ind file from the idx file is that makeindex is used instead of mendex.In fact, when I ran the command prompt, I got the output I wanted.That's all I've done, and I don't know how to set it up to use mendex when building with Atom.I would appreciate it if you could tell me what to do.