DO_INIT_CONTEXT
me->typed_context->ficacorrespondence->set_selection_mode( cl_bsp_wd_context_node_tv=>selmode_multi ).
IF me->typed_context->ficacorrespondence->collection_wrapper->if_bol_bo_col~multi_select NE abap_true.
me->typed_context->ficacorrespondence->collection_wrapper->if_bol_bo_col~set_multi_select( ).
ENDIF.
typed_context->ficacorrespondence->build_table( ).
Same code done in
DO_VIEW_INIT_ON_ACTIVATION