There is some flexibility to adjust the Y-axis limits used on graphs. The Customise ~ Axis Limits menu item can be activated by right-clicking on the graphic. Select the relevant graphic (if prompted) and set new maximum and minimum values for the axis. The number and intervals of tick marks will be reset automatically even if the number has been preset using the Customise ~ Number of Tick Marks menu item. For Scatter Plots , resetting the axis limits will reset both axes.