This script will copy Table and View positions from one Diagram to another.  You can specify a From and To Diagram that you want to use:

 To run it:

1) bring up the Script Explorer

2) right click on "User Defined" and select "New Script"

3) copy/paste the attachment into the edit control

4) change the FromModelSubsetName, FromDiagramName, ToModelSubsetName, and ToDiagramName  in the Evaluate_OnLoad subroutine to match the names of the Model Subsets and Diagrams that you want to use.

5) hit the run button (the first icon in the toolbar above the edit control)

Note: you can undo/redo the effects of this script as with any Model changes