The calculations tab in some of the emissions and immunity actions allow you to apply correction factors to the raw data being acquired. This is most useful for looking at graphs while testing. You can do any math at that time as long as all the inputs are available. These equations will be stored so there is no need to add a math action after the test action.
One limitation is that you cannot use the calculation as a leveling limit in immunity since the sequence levels, then does the math.