如何通过单击另一个图表元素打开Kibana图表

I'm trying to create a custom visualization plugin for Kibana 4.6, I've made a copy of the default pie chart in the 'installed plugins' folder. I'm trying to to show another chart (a histogram/vertical bar chart) after a click on any slice of the pie chart. I'm sure that it isn't the best way to do it, but right now, I've found only one way to add a custom click handler to a pie chart slice: to insert the following code inside ui/public/vislib/visualizations/pie_chart.js (inside the PieChart.prototype.addPath method):I'm trying to create a custom visualization plu