[Koha] Field Mapping to koha

Hi All My current system keeps its call number in one field with 3 subfields for example: QA75.4SMI QA Call number prefix is 852k 75.4 Classification part is 852h SMI Item part is 852i Now i want to map all the above into koha field for class number what do I really do? Ephazz ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program.