Hi, Maybe it is obvious, but I don't find a solution of how I can assign the atoms of 1 residue, e.g. PHE or TYR, twice. I can see peak doubling for the atoms and therefore would like to have 2 assignments for the 2 conformations. Thank you for your help! - Carolin ------------------------------------------------------------ Carolin Seuring ETH | Zurich | www.bionmr.ethz.ch Phone: +41 44 6337646 E-mail: [log in to unmask]