[Koha] Koha - order of subject fields

Has anyone found an easy way to change the order of subject fields? In other words, if you have multiple 6XX fields and want to change their order in which they appear - according to importance. Is there a way in Koha to do that? Thanks. -- Linda Culberson lculber@mdah.state.ms.us Archives and Records Services Division Ms. Dept. of Archives & History P. O. Box 571 Jackson, MS 39205-0571 Telephone: 601/576-6873 Fax: 601/576-6824