Examples:
The following VBA example creates a node range containing the first, second, and third nodes of the curve. A fifth node is added to the curve, and then all four nodes are deleted from the curve.
Sub Test()
Dim nr As NodeRange
Set nr = ActiveShape.Curve.Nodes.Range(1, 2, 3)
nr.Add ActiveShape.Curve.Nodes(5)
nr.Delete
End Sub