I am trying to open SAP Gui from portal with SSO. Its working without any problems. I am using SAP Transaction iView with configuration to use SAP shortcut file. My problem is that GUI is not opened in full screen mode. I have found structure of .sap file and it is possible to affect size of opened window with parameter GuiSize=Maximized in section Configuration. The question is how to add this parameter to shortcut file generated by portal transaction iView.