I have a general question about the All-day events that I send myself

I create an all-day appointment with myself and change the availability of "free".
If another person wants to make an appointment at same day with me and considered my busy search availability then that day is set to "occupied".

The default setting in the GW Client is "occupied".
tools --> options --> calendar --> All-day events that I send myself accept , as : occupied

Is it possible to change this default setting global to "free" for all GW clients in the company? Maybe in the
GroupWise Administration Console?