Need to display multiple alv using oo alv in background

Hi Friends,

I want to display multiple alv on single screen for a report which has to be run in the background.

I have tried using the docking container which I found on the SCN as below;

* Check whether the program is run in batch or foreground

    IF CL_GUI_ALV_GRID=>OFFLINE( ) IS INITIAL.

* Run in foreground

      CREATE OBJECT R_CONTROL EXPORTING CONTAINER_NAME = 'CONTAINER_1'.

      CREATE OBJECT R_GRID EXPORTING I_PARENT = R_CONTROL.

    ELSE.

* Run in background

      CREATE OBJECT R_GRID EXPORTING I_PARENT = G_DOCK.

    ENDIF.</b>

* Structure ZBA_MARA1 is defined in DDIC as linetype

    CALL METHOD R_GRID->SET_TABLE_FOR_FIRST_DISPLAY

    EXPORTING

    I_STRUCTURE_NAME = 'MARA'

    CHANGING

    IT_OUTTAB = ITAB.

  ENDIF.

But using this I am able to display only one output at a time on the screen.

Can you please let me know how to handle this issue.

Regards,

Swapnil