Just switched to Mac from Windows and in ppt on Windows I had an addin that allowed me to copy an object\'s properties including size and/or location and paste it to another
Here's an example that works. You can adapt it to suit your specific needs.
Sub CopySizeAndPosition()
' Usage: Select two shapes. The size and position of
' the first shape selected will be copied to the second.
Dim w As Double
Dim h As Double
Dim l As Double
Dim t As Double
With ActiveWindow.Selection.ShapeRange(1)
w = .Width
h = .Height
l = .Left
t = .Top
End With
With ActiveWindow.Selection.ShapeRange(2)
.Width = w
.Height = h
.Left = l
.Top = t
End With
End Sub