Select Software Integration > WFN in the left list.
Check the Enable Pirana support for WFN box to enable editing of the settings.
Enter any parameters to use to setup the run environment in the WFN startup parameters field.
Enter any NMBS command arguments to use to execute bootstrap NONMEM runs in the NMBS parameters field.
Specify a location of the folder containing the WFN.bat file in the WFN.bat location field
Or
Click 
to navigate and select the folder.