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.
Normally, tooltips on PieChart slices are shown when they are hovered by a cursor. This demo will show how we can disable this default behavior and only show tooltip when slice is tapped or clicked.
See the Pen amCharts 4: Display tooltip on PieChart slice click by amCharts team (@amcharts) on CodePen.24419