The Chart3DLabel Collection Editor allows the user to add labels by clicking on the Add button and attach them to the chart by coordinate, data coordinate, or data index or to remove the labels by clicking on the Remove button. The user can also modify the label's properties.

To access the Chart3DLabel Collection Editor:

1. Right-click on the C1Chart3D control and select Properties from its context menu.
2. In the Properties window, expand the ChartLabels node, then click on the ellipsis button next to the LabelsCollection property. The Chart3DLabel Collection Editor opens.