Solved my self.
Below is the solution. Go to the Viewset implementation class ZL_BT111S_O_MAINVIEWSET_IMPL and call the default configuration in method DO_CONFIG_DETERMINATION .
CALL METHOD me->set_config_keys
EXPORTING
iv_object_type = '<DEFAULT>'
iv_object_sub_type = '<DEFAULT>'
iv_propagate_2_children = 'X'.
regards,
rama