Hi Axel,
you can access the xml configuration of the displayed columns in the method DO_PERPARE_OUTPUT of the implementation class of your search result view as follows:
DATA: lv_xml TYPE bsp_dlc_xml.
IF me->configuration_descr IS BOUND.
lv_xml = me->configuration_descr->get_config_data( ).
ENDIF.
Then you could change the search result by changing the collection of STYPED_CONTEXT->SEARCHRESULT.
Best Regards,
Christoph