Here is a script I wrote using Autohotkey to copy data from one revit schedule to another.
I have attached the executable file, code in txt form and a read me file as zip. I hope this is useful to others. You can keep the exe file anywhere in the system. Before running, make sure you have only two schedule views open in Revit. Please report any bugs. Thanks.
I have copied and pasted below info from the read me file:
What the EXE does:
###############################################################
* The exe checks if a Revit schedule view is open.
* It shows a help message regarding the prep work.
* (If you dont want this msg to appear in the future, the
script saves the setting in your windows registry)
* Asks for the number of rows and columns that need to be copied.
* Checks if the numbers entered are in fact 'numbers'
* Switches to Revit and Window Tiles the views and asks you
* to close other views.
* (You can skip this msg too)
* Asks you to select the cell to start copying from
* Asks you to select the cell to start pasting to
* The script starts to copy/paste
* You can press escape to cancel the script.