Calculate Trace Values
To calculate trace values click the Options button and then click Calc Trace Values. Use this feature to calculate those values that appear in the trace window, such as Sight Adj or Zeroed Range.
This option displays the range to the 1st LOS crossing (close zero) and the Maximum Point Blank Range if the Find parameter is set to Max Pnt Blk Rng. The Free Recoil value will also be displayed if values have been entered for Gun Weight and Powder Wgt. in the Extended Data window.
There is no need to calculate values when viewing data with one of the displays, just open or click on the display to have the program calculate automatically.