Hi How can i get the job total run time (update_time - create_time) into the label in the history? Something like: <data format="..." label="${tool.name} on ${on_string} ${update_time-create_time}"/> But this gives me the error: NotFound: cannot find 'update_time' I'm not sure what the fully qualified name of update_time would be. I think its in the job table. Cheers M -- Dr Michael Pheasant Software Engineer Queensland Facility for Advanced Bioinformatics Level 6, QBP University of Queensland, QLD 4072 T: +61 (0)7 3346 2070 F: +61 (0)7 3346 2101 www.qfab.org