The dialog window serves to test the entire file of the check distances at once. The individual check distances are added in the window from the job <check distances> by pressing the button (Add to file).The individual check distances can be removed by the button (Remove). After pressing the button (Calculation) the program processes the entire file of the check distances and stores the result (the real and limit differences and the final file evaluation) in the report. The entire file can be stored on the disc after pressing the button (Save) and later loaded from the disc by the button (Read).