Is it possible to remove Scheduled Work Day flag for Family Pay Absences

When entering family pay absences (Maternity, Paternity, Adoption) Oracle will not let us input the start or end date on an employees non working day.

It is required under legislation that where a family pay absence hasn't already started, it must begin the day after the birth/adoption of the child.

Currently if this is a non working day we have to put the user on a 7 day enterprise pattern for that one day, this then provides them with a time credit on their timesheets that has to be amended when the user returns. The same happens if the end date of the absence falls on a non working day.