The Merge Width option determines the ± m/z window around the detected peaks where intensities are summed (merged) during the ZNova scoring process. For example, for a peak at 500 and a Merge Width of 0.5, intensities from 495.5-500.5 will be summed to obtain the ZNova score. Typically, the Merge Width is set to 10 - 25% of the Peak Width parameter (e.g., 0.2-0.5 for 2 m/z unit peaks).