Use the column checkboxes to build your query. Header columns sets/unsets all columns
SELECT MANDT, MOLGA, LGART, ENDDA, BEGDA, NPART, NPSRT, NPED1, NPED2, NPED3, NPED4, NPED5, NPRNA, LGA01, LGA02, LGA03, LGA04, LGA05 FROM T541N