SAFTE-FAST is the validated and widely used fatigue model used to assess fatigue for an entire workforce. More information about SAFE-FAST can be found here
Leon is able to generate a report which can be uploaded on SAFE-FAST website and used towards crew fatigue calculations.
The report includes flights (with and without the JL), crew positioning and duties assigned in Crew > Duties or Crew Panel.
It is also possible to generate the report for multiple crew by clicking on Export multiple crew members link and sending the report for selected crew to the email address inserted in the 'Recipients' box.