The Spectrum view displays the spectrum linked to the active chromatogram trace. The x axis displays the m/z values, the y axis displays the relative abundance, and the peaks are labeled with their corresponding m/z values. Users can zoom in on, reset, and modify the Spectrum view through the ellipsis menu 
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You can resize the Spectrum view or multiSpectrum view by dragging the splitter bar that is positioned between the Chromatogram view and the Spectrum view or between the multiSpectrum; dragging the bar up increases the Spectrum view's width and dragging it down decreases the view's width.