You can also create groups by selecting data points in a visual. For example, let’s say you have a scatter chart like the one shown in Figure 3-47. You can group values as follows:
Holding the Ctrl key, select a few data points on the scatter chart.
Right-click one of the selected data points.
Select Group data.
This will create a column with two data groups that you can use as the chart legend.
The default group names are often not very user-friendly; to edit a group, right-click the column in the Fields pane and select Edit groups.
