Gulpfile.js

toolkit.extendConfig({
    /* ... Shortening for brevity, other config would likely be here. */
    css: {
        scss: {
            'woocommerce': { /* Output filename */
                src: 'develop/scss/woocommerce.scss', /* Input file */
                dest: 'css/' /* Output path. */
            },
            'edd': { /* Output filename */
                src: 'develop/scss/edd.scss', /* Input file */
                dest: 'css/' /* Output path. */
            }
        }
    }
});