This is a demo tutorial. While there is no step-by-step commentary available (yet), the live demo below is fully functional. Feel free to open it for full source code.
In amCharts 5, labels need to have a background to be able to be compatible with pointer interactions such as hover and click. However, circular labels do not support backgrounds. This demo solves the issue by adding a Slice element into such labels.
See the Pen
Clickable circular labels by amCharts team (@amcharts)
on CodePen.0