cl_salv_table remove sort and filter buttons from menu and column options

Hi,

I would like to remove sort and filter buttons from the menu but also from column options (when user clicks the mouse right button).

When i write the follwing code it removes the buttons menu but not from the column options.

    gcl_file_functions->set_all( 'X' ).

    gcl_file_functions->set_group_layout( 'X' ).

    gcl_file_functions->set_group_sort( ' ' ).

    gcl_file_functions->set_group_filter( ' ' ).

    gcl_file_functions->set_sort_asc( ' ' ).

    gcl_file_functions->set_sort_desc( ' ' ).

    gcl_file_functions->set_filter( ' ' ).

How can i prevent the user from sorting and filtering the data also from the clumn option?

Thanks'

Moshe