title: Highcharts Plotline feature
body: <p>I was wondering whether it'd be possible to draw multiple y axis plotlines on specific dates using highcharts.</p>
  
  <p>I have 3 lines with different colors, one from 16 Apr to 30 Apr and the second one from 30 Apr to 28 May, the third from 28 May to 25 Jun</p>
  
  <p>something similar to this : </p>
  
  <p><a href="https://i.stack.imgur.com/48VaF.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/48VaF.png" alt="enter image description here"></a></p>
  
  <p>Thanks for your help. 
  H</p>