Improvements in plots include editing the Min and Max values outside the range of the current data, and resetting the Min and Max back to the default values.
When comparing result plots from different simulations, you can set an appropriate plot range (which could be outside the min and max values of the individual plot) to facilitate the comparison and interpretation of results.
The default minimum and maximum limits are shown above the plot legend.
In the Results PropertyManager, click 
to reset the min and max values to their default values.