SC creation on the same Web page as overview page
We user SRM7.0 with SAP Portal.
When I try to create SC a new web page is open.
(We create SC - by clicking on 'Create SC' from 'purchasing' tab or clicking on 'Shop' from 'Employee self service' tab).
I want the system to create the SC on the same web page of the overview - does anyone know how can we do it?