title: Highcharts - stacked column - order series index dynamically for each category
body: <p>I have a scenario where i am drawing a stacked column chart, currently stuck at a point where i need to order the series in a specific order in case of multiple data points on the same day. The issue is, the series order can be different for each day - I have the code and example below - </p>
  
  <pre><code>Highcharts.chart('container', {
  chart: {
      type: 'column'
  },
  title: {
      text: 'Stacked column chart'
  },
  xAxis: {
      categories: ['Apples', 'Oranges', 'Pears', 'Grapes', 'Bananas']
  },
  yAxis: {
      min: 0,
      title: {
          text: 'Total fruit consumption'
      },
      stackLabels: {
          enabled: true,
          style: {
              fontWeight: 'bold',
              color: (Highcharts.theme &amp;&amp; Highcharts.theme.textColor) || 
      'gray'
          }
      }
  },
  legend: {
      align: 'right',
      x: -30,
      verticalAlign: 'top',
      y: 25,
      floating: true,
      backgroundColor: (Highcharts.theme &amp;&amp; Highcharts.theme.background2) 
        || 'white',
      borderColor: '#CCC',
      borderWidth: 1,
      shadow: false
   },
  tooltip: {
      headerFormat: '&lt;b&gt;{point.x}&lt;/b&gt;&lt;br/&gt;',
      pointFormat: '{series.name}: {point.y}&lt;br/&gt;Total: 
                   {point.stackTotal}'
  },
  plotOptions: {
      column: {
          stacking: 'normal',
          dataLabels: {
              enabled: true,
              color: (Highcharts.theme &amp;&amp; 
                     Highcharts.theme.dataLabelsColor) || 'white'
          }
      }
  },
  series: [{
      name: 'John',
      data: [5, 3, 4, 7, 2]
  }, {
      name: 'Mary',
      data: [2, 2, 3, 2, 1]
  }, {
      name: 'Kevin',
      data: [3, 4, 4, 2, 5]
  }]
  });
  </code></pre>
  
  <p>JSFiddle : <a href="http://jsfiddle.net/arj_ary/4kz7rdpn/2/" rel="nofollow noreferrer">http://jsfiddle.net/arj_ary/4kz7rdpn/2/</a></p>
  
  <p>Requirement: In the above JSFiddle, for each category i want the lowest datapoint to show up at the top. So for Apples i want Mary at the top since it has a value of 2. Similarly for Oranges and Pears.</p>
  
  <p>Can this be accomplished? Any help is appreciated.</p>