[Koha] Subtitle to show on OPAC

I would like the subtitle (MARC tag 245 b) to be visible on the OPAC. I have checked the System parameters and it is not marked as hidden. Any suggestions? -- *Joy Fischer, B.A., AALIA* Librarian National Acoustic Laboratories <http://www.nal.gov.au/> /A Division of Australian Hearing/ 126 Greville Street Chatswood NSW 2067 Australia P +61 2 9412 6801 F +61 2 9411 8273 Please consider the environment before printing this email