Can anyone pls help me out ?
No, there is no custom scripting. However, many things can be achieved via clever use of calculations and current charts. What are you trying to see?
on a broader terms, i am looking at something wherin we can write a .NET code which will help me out to extend the functionality of the tool.
e.g. in Dundas we can write a code which will help you out to export the chart in the new defined format.
similarly for other functionality too..