title: Highcharts multiple axis gauge with 2 dials with different radii
body: <p>In Highcharts you can add a second axis and a second dial to a gauge and you can change the radius of the dials together but I cannot find a way to change the radius of each dial separately.</p>
  
  <p>I want my <code>plotOptions</code> to look something like this:</p>
  
  <pre><code>plotOptions: {
      gauge: {
          dial: [
              {
                  radius: "45%",
                  rearLength: "0%"
              },
              {
                  radius: "90%",
                  rearLength: "-70%"
              }
          ]
      }
  }
  </code></pre>
  
  <p>where only this seems to have any effect but it effect both dials</p>
  
  <pre><code>plotOptions: {
      gauge: {
          dial: {
              radius: "45%",
              rearLength: "0%"
          }
      }
  }
  </code></pre>
  
  <p>i tried making <code>plotOptions</code> itself an array and then <code>gauge</code>. The API docs don't seem to offer a way to do this as all options beneath <code>plotOptions</code> seem to be singular.</p>