Use the column checkboxes to build your query. Header columns sets/unsets all columns
SELECT MANDT, LAUFD, LAUFI, KOART, BUKRS, KUNNR, LIFNR, ARBGB, MSGNR, MSGV1, MSGV2, MSGV3, MSGV4, APPL_LOG_NUMBER, BUSAB FROM MHNEX