The AddRange method adds nodes from another node range to the current node range.
Examples:
The following VBA example sets the node type to smooth for all nodes on the first and second subpaths of the selected curve.
Sub Test()
Dim nr As NodeRange
Set nr = ActiveShape.Curve.Subpaths(1).Nodes.All
nr.AddRange ActiveShape.Curve.Subpaths(2).Nodes.All
nr.SetType cdrSmoothNode
End Sub