main node in smart forms

Hi all,

When i am trying to create a main window in second page with the same width ,length,height as in first page it's giving an error no two main windows are allowed in a form.

so i have tried to create like in other way.

just copying the main window from first page. But this time i am not getting any error but the problem is! the nodes which are already existing as sub nodes in the main window are also coming here if try to delete in second page the nodes in the first page also deleting.What can i do.Can any one help me how to solve the problem.

Regards,

Lisa.