If you're trying to print a pretty version of a spectrum with minimal peak annotations, it can be useful to get rid of the unassigned spinsystems and their peaks. If you output postscript then the following regular expression will find all the crosspeaks with unassigned spinsystems so you can use it in e.g. nedit's search & replace dialog to get rid of them .+\n.+\n.+\{.+\}.+PS_text -- Dr. Brian O. Smith ---------------------- B Smith at bio gla ac uk Division of Biochemistry & Molecular Biology, Institute Biomedical & Life Sciences, Joseph Black Building, University of Glasgow, Glasgow G12 8QQ, UK. Tel: 0141 330 5167/6459/3089 Fax: 0141 330 8640