This table works in concert with the system parameter pt_vacation_like_ft.  If set to true, then the table below is active.

In other words, by salary version, these are the PT employees that will be treated the same as FT when it comes to vacation.

(Vacation hours based on FTE vs Vacation in lieu)  They need to have another profile for these staff as the vacation line does have default hours, just like FT staff.