If you’re running unix based system like ubuntu or mac, first install globally

npm install node-sass -g

With this command you’ll get full path of node-sass package

which node-sass

which you need to put into Program field, usually it will be:

/usr/local/bin/node-sass

In Arguments if you just want to transpile, simple put:

$FileName$ --output-style compressed $FileDir$/$FileNameWithoutExtension$.css

If you want to transpile and compress, also using min postfix in file name, try this:
$FileName$ --output-style compressed $FileDir$/$FileNameWithoutExtension$.min.css

For generating map file use --source-map true
$FileName$ --source-map true --output-style compressed $FileDir$/$FileNameWithoutExtension$.min.css

For more options please check this https://github.com/sass/node-sass#command-line-interface

Leave the rest of the settings as they are.

Now once you save any .scss file, it should be automatically transpile into the same folder.