Syncing zero grid line across multiple axes

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 use Value axis' private setting events to sync zero-line across multiple axes.

See the Pen Syncing zero grid line across multiple axes by amCharts team (@amcharts) on CodePen.