You can use [MestReNova][1] where all the assignments are linked to the molecular structure. In addition you can copy the peaks (with the assignments) just by Ctrl+C (in the original dataset) and then 'Edit/Paste Properties/NMR Peaks' in the other spectra. If your question is about T1/T2 analysis, then your feature is '[Data Analysis][2]' For further information, just email [here][3] [1]: http://mestrelab.com/software/mnova-suite/download/ [2]: http://mestrelab.com/resources/data-analysis/ [3]: support@mestrelab.com