title: How to draw a line between 2 different area charts for same category (x axis) in highcharts?
body: <p>I have 2 area charts plotted, of which one is  drag-gable, when the chart is dragged and on click of button, it should draw line between two points (connecting the two) in the same category.  Is this possible?</p>
  
  <p>Here's the jsFiddle: jsfiddle.net/AyUbx/3118/</p>
  
  <p>It has two area charts.
  Image is also attached which explains the requirement.</p>
  
  <p><a href="http://i.stack.imgur.com/ITGuj.png" rel="nofollow">http://i.stack.imgur.com/ITGuj.png</a></p>