How to open a new WDA window with the same context

Hi,

I have an application that has an ALV data and when the user clicks on a line more data is presented. The data is year dependant.

The user want to have a button that when pressed the data which is presented down in a view will be opened in another window so he can continue working on the current window but also compare the data to the previous year data in the other window.

Any ideas how I can open a new window and copy the context over?

thanks,

Itay