The AutoPlotWindow object controls the plot window and is accessed through the Document object's Windows property.
Derived from: AutoWindow object (All methods and properties of AutoWindow apply to this object.)
The following script demonstrates how to access a new window.
'Declares GrapherApp as an object
Dim GrapherApp As Object
'Creates an instance of the Grapher Application object
'and assigns it to the variable named "GrapherApp"
Set GrapherApp = CreateObject("Grapher.Application")
'Make Grapher visible
GrapherApp.Visible = True
'Declare Docs as Object
Dim Docs As Object
'Assigns the Documents collection to
'the variable named "Docs"
Set Docs = GrapherApp.Documents
'Declare Plot as Object
Dim Plot As Object
'Creates a new plot window
Set Plot = Docs.Add(grfPlotDoc)
'Declares PlotWindow as an object
Dim PlotWindow As Object
'Assigns the new plot window to the
'variable named "PlotWindow"
Set PlotWindow = Plot.NewWindow