Hi, While making a synthetic peak list, lets say for NOESY spectra, based upon chemical shifts/structure , although Analysis does a reasonable job; it picks some erroneous peaks. Lets say after inspection of one such peak list, I arrive at the conclusion that the peaks below a particular threshold (height/volume) are not valid. Is there any way to delete them all at once? ( Right now, I am using the following approach: Peak table: Select the peaks one by one, while using Ctrl - Delete peaks). Thanks in advance, Regards, Lalit