Position Markers can be displayed on Proliferation histograms to mark the position of the undivided cells peak and/or the background region.
To format proliferation position markers:
1. Right-click on the Proliferation histogram.
2. Choose Format from the pop-up menu.
3. Click on the triangle next to Proliferation to expand the category.
4. Select the Position Markers category.
5. To make the position marker for a specific peak, select the peak and check the box for Show position marker on the plot.
Select the Undivided cells peak and/or Background properties from the list box on the left (Figure 26.3) and choose line options for the selected markers on the right.
Figure 26.3 Formatting Proliferation Position Markers