title: How to get series highlight on hover in highcharter?
body: <p>Highcharts has this neat feature when hovering over a bar in a column chart, the entire series is highlighted, best seen live <a href="https://www.highcharts.com/demo/column-negative" rel="nofollow noreferrer">here</a>:</p>
  
  <p><a href="https://i.stack.imgur.com/2T0SJ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/2T0SJ.png" alt="enter image description here"></a></p>
  
  <p>In the R wrapper <code>highcharter</code> this does not work, why?</p>
  
  <pre><code>library(highcharter)
  library(tidyverse)
  
  hc &lt;- highchart() %&gt;% 
    hc_chart(type = "column") %&gt;%
    hc_xAxis(categories = c('Apples', 'Oranges', 'Pears', 'Grapes', 'Bananas')) %&gt;% 
    hc_add_series(name = "John", data = c(5, 3, 4, 7, 2)) %&gt;% 
    hc_add_series(name = "Jane", data = c(2, -2, -3, 2, 1)) %&gt;% 
    hc_add_series(name = "Joe", data = c(3, 4, 4, -2, 5))
  
  hc
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/G3EAF.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/G3EAF.png" alt="enter image description here"></a></p>