EXFO FastReporter 2 - Manual (Page 197)

Working with PMD Files
Post Processing Software 187
Changing PMD Settings
3. Modify the displayed values as needed if you selected to use a
threshold from the application. The Apply option must be enabled for
the values to be active and modifiable.
4. To apply the changes without closing the dialog box, click Apply. To
apply the changes and close the dialog box, click OK.