## [Processing] Menu

### Peaks

#### Edit Peaks

##### Changing a Peak Area

1. While peaks are displayed in a spectrum/chromatogram, select [Processing] in the menu bar and then select [Peaks] > [Edit Peaks] from the drop down menu.

   The peak areas turn yellow.

   - You can also turn the peak areas yellow by clicking the icon in the toolbar.

2. When the mouse pointer appears as , left-click on the dot displayed at the end of the range you want to change and drag.

3. Release the left mouse button.

   The peak area is changed.