Explanation of how behaves the current tooltip.grouped option.

var chart = bb.generate({
  data: {
    columns: [
	["data1", 300, 150, 300],
	["data2", 130, 150, 140]
    ],
    types: {
      data2: "scatter"
    },
  },
  tooltip: {
    grouped: true | false
  }
});

• bubble/scatter chart types: display as not grouped.

• other chart types: display as grouped.

  

• all chart types: display as not grouped.

  • But for the points where line & bubble/scatter stacks each other, there's no way on displaying all stacked data points.

    

  • Only shows the first-ish data from the node structure.

    Note the below example, 'data1' set as 'scatter' type and only displays 'data1' tooltip only which is the first node structurally.