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.
This demo shows how we can disable triggering of slice tooltip when its legend item is hovered.
The code
legend.itemContainers.template.setup = function(item) { item.events.disableType("pointerover") };
legend.itemContainers.template.setup = function(item) { item.events.disableType("pointerover") };
The demo
See the Pen
Disabling hovers in PieChart legend by amCharts team (@amcharts)
on CodePen.0