General Tab (Legend)
The Anchor dropdown allows you to specify where the legend it positioned in relation to the ChartArea.
Chart3D.Legend.Anchor
The Orientation dropdown allows you to specify the layout of the items in the Legend.
Chart3D.Legend.Orientation
The Type dropdown allows you to specify whether to use a continuous or stepped legend style.
Chart3D.Legend.Type
The Range dropdown allows you to set the legend range. If Data is selected, only the custom levels matching the data are shown in the legend. Otherwise, all levels are shown.
Chart3D.Legend.DistributionRange
When selected (checked), the IsShowing checkbox sets the IsShowing property so that the Legend is visible.
Chart3D.Legend.IsShowing