BIO RAD ZE5 User Manual page 231

To add a quadrant region to a plot
Note: Quadrants apply only to density plots.
1. In the plot and histogram toolbar, click Add Quadrant Regions.
Quadrants are added to the plot.
2. To move the quadrant dividers, point to the center circle.
When the pointer changes to a hand, use it to drag the horizontal divider up or down, or use it to
drag the vertical divider to the left or right.
3. To skew the quadrant dividers, point to a circle along a plot axis.
Using Plot and Histogram Tools
User Guide | 229