sap bi system copy

Hi all,

        I have to perform BI 7.2 system copy ( qas to dev),

         as it is a Dual stack

        please let me know, how to do that.

        I want to know what options to select once the SAPINST (SWPM) is started,

       whether i have to select Netwevear "ABAP" stack or "ABAP and JAVA" or i have to do both for abap and java stack seperately.

      and also let me know same for the import process.

thanks

thomus