Heatmap plots m/z on the X-axis and RT on the Y-axis and displays the different intensity levels using color difference.
Left-click at one end of the range in the heatmap and drag diagonally to the other end.
Release the left button.
Right-click in the heatmap to go back to the previous image.
Note:
The 3D View of the same sample will also change to the scale used in the Heatmap View.