How to set alignment of ALV heading.

Hi Experts,
In a ALV report I have created a Heading I want this heading to be displayed in the centre How to do this.
  DATA: t_header TYPE slis_t_listheader,
        wa_header TYPE slis_listheader.
/// I want this heading to be in centered/////
Heading 'Relicance Energy Limited
  wa_header-typ   = 'H'.
  wa_header-info  = text-001.
  APPEND wa_header TO t_header.
  CLEAR wa_header.
IF p_bp_ty =  1.
Premium value customer
  wa_header-typ = 'S'.
  wa_header-info = text-002.
  APPEND wa_header TO t_header.
  CLEAR wa_header.
ENDIF.
IF p_bp_ty = 2.
High value customer
wa_header-typ = 'S'.
wa_header-info = text-003.
APPEND wa_header TO t_header.
CLEAR wa_header.
ENDIF.
CALL FUNCTION 'REUSE_ALV_COMMENTARY_WRITE'
    EXPORTING
           it_list_commentary = t_header
     i_logo = 'RELMR'.
Fast response will be highly rewarded
Regards
Bikas

Check this Blog,
This is using the LVC Function module.
/people/community.user/blog/2007/01/10/displaychange-mode-of-editable-fields-in-alv-using-function-modules-but-not-custom-containers

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       WA_FCAT-COL_POS = 2.
       WA_FCAT-FIELDNAME = 'VBELN'.
       WA_FCAT-TABNAME = 'IT_FINAL'.
       WA_FCAT-OUTPUTLEN = '3'.
       WA_FCAT-SELTEXT_M = 'Sales Document'.
       APPEND WA_FCAT TO IT_FCAT.
       CLEAR WA_FCAT.
    ENDFORM.                    " FIL_FCAT
    *&      Form  DISPLAY1
    *       text
    *  -->  p1        text
    *  <--  p2        text
    FORM DISPLAY1 .
    CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
        EXPORTING
    *   I_INTERFACE_CHECK                 = ' '
    *   I_BYPASSING_BUFFER                = ' '
    *   I_BUFFER_ACTIVE                   = ' '
          I_CALLBACK_PROGRAM                = SY-REPID
    *   I_CALLBACK_TOP_OF_PAGE            = ' '
          IT_FIELDCAT                       = IT_FCAT
    *   I_DEFAULT                         = 'X'
    *   I_SAVE                            = ' '
         TABLES
           T_OUTTAB                          = IT_FINAL
    * EXCEPTIONS
    *   PROGRAM_ERROR                     = 1
    *   OTHERS                            = 2
       IF SY-SUBRC <> 0.
    * Implement suitable error handling here
       ENDIF.
    ENDFORM.                    " DISPLAY1
    Here i written code under the SAVE button , if requires you create your own status and apply.
    Regards,
    Krishna

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