The way DynRisk handles scales is affected by the “Autoscale plots” option. This is controlled by the “Data file options…” command in the “Preferences” submenu of the “File” menu. 

If you leave “Autoscale plots” checked, DynRisk will use the current scale settings (i.e., either the default scale or the scale you specified using the “Scale…” command) each time you produce a plot. If, on the other hand, “Autoscale plots” is unchecked, DynRisk will ask you to choose a scale before drawing the plot.

The “Autoscale plots” option is temporarily reversed if you press the “Shift key” on the keyboard while choosing the plot command from the menu or toolbar.