title: How to overwrite babel's preset plugin options
body: <p>I'm using <a href="https://www.npmjs.com/package/babel-preset-react-app" rel="noreferrer">babel-preset-react-app</a> via following .babelrc:</p>
  
  <pre><code>{
    "presets": ["react-app"],
    "plugins": [
      "transform-es2015-modules-commonjs",
      "transform-async-generator-functions"
    ]
  }
  </code></pre>
  
  <p>I need to overwrite <code>babel-plugin-transform-runtime</code> options. I tried installing plugin and adding it to .babelrc in a following way:</p>
  
  <pre><code>{
    "presets": ["react-app"],
    "plugins": [
      ["babel-plugin-transform-runtime", {
        "helpers": false,
        "polyfill": false,
        "regenerator": false
      }],
      "transform-es2015-modules-commonjs",
      "transform-async-generator-functions"
    ]
  }
  </code></pre>
  
  <p>but it doesn't work for me.</p>
  
  <p>Is there any way I can do it without copy and pasting entire preset to my .babelrc?</p>