Use the column checkboxes to build your query. Header columns sets/unsets all columns
SELECT ITFPC, PR_PER, SND_PAR, SND_P_NL, PARC_TYP, SRC_LENG, SRC_FILE, RECD_NBR, DEST_FIL, DSN_FMT, REC_LEN, CMD_PROG, CMP_PAR, COMP_S, COMP_TYPE, SPEC FROM T5F6L