Hello, Sort by Height or Volume by clicking on the header for that column (click a second time if you want descending instead of ascending). Select the first row, scroll down to the last row, press shift + left click and all the peaks from the first row to the last row will be selected. Then delete. Wayne On Sat, 18 Jul 2009, Lalit Deshmukh wrote: > 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 >