Hi ! I have been playing around in relax_disp, and wonder. Can relax handle un-assigned peaks? Assignment w1 w2 Height Volume A101N-A101HN 124.571 8.003 0.00E+00 0.00E+00 -- ?-? 124.316 7.962 0.00E+00 0.00E+00 -- We often have 2-3 un-assigned peaks, which is interesting to carry on in our analysis. Can you have several reference spectra? We have some datasets with 2-3 replicates for the reference spectrum. Best Troels Emtekær Linnet