I just tried something this morning. If you go to Knowledge Center search https://www.ibm.com/support/knowledgecenter/search/ and type in a message number the first hit seems to be the entry in Messages and Codes. Hard to see how that is any less satisfactory than LookAt. Better in that it gives you additional references also (some of them irrelevant, but who cares).
Charles ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN