Modify variant associated with a Query

Hello Gurus,

I hava a Query that has a variant.

I want the following: From a Report I want to get the variant change the values and execute the Query with the new variant changed?

I am using this, the name of the variant is ZHR0010, this FM Works ok, but my problema is how to change the values of the variant.

CALL FUNCTION 'RSAQ_QUERY_CALL'
    EXPORTING
      workspace                         = '' "global
      query                             = 'ZHR0010'
      usergroup                         = 'ZPEHR'
      variant                           = 'ZHR0010'
      skip_selscreen                    = 'X'
      data_to_memory                    = 'X'
    IMPORTING
      ref_to_ldata                      = ref_to_datatab
    EXCEPTIONS
     .

Do you know how to change it?

I hope someone can help me please.

Thanks for your  time.

regards.

     .