Add element on certain columns in highcharts -


i'd add element (a circle) above of columns in highchart generated chart. in chart, columns stacked, visually compare 2 series. need draw circle above of these columns show year special happened. i've tried create dummy serie, bubbles doesn't work. believe draw api better option, don't know how calculate have draw, set element attributes x , y.

you can use image renderer http://api.highcharts.com/highstock#renderer.image() or more user friedly, scatter series allows define own markers (like images). http://jsfiddle.net/ckkhf/

{              type:'scatter',             showinlegend:true,             data:[10,9,11,11,8],             marker: {                     symbol: 'url(http://www.highcharts.com/demo/gfx/sun.png)'                 }         }

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