Using sales order scheduling program with reschedule mode and bulk processing

In R12.2 we have the possibility to use the scheduling program to re-calculate the schedule ship date in "Reschedule Using Request Date" mode together with bulk processing. When this is used it seems the program will first un-schedule all the selected lines and schedule them again. Is this also possible for lines with a ship set (as normally the lines with a ship set can not be un-scheduled)? And when we use as sorting first order by the schedule ship date, will the lines be scheduled again in the sequence of the schedule ship date before un-scheduling as this will