When a new line is inserted into a scheduling group (such as a ship set or a configuration), system will first try to schedule the new line with the same
attributes as the other lines in the scheduling group. If that fails, then it
checks the value of the profile option Auto Push Group Date. If the value is
No, the line is inserted but not scheduled. If the value is Yes, the system
tries to reschedule the whole set. If rescheduling the whole set fails, the
line is inserted but not scheduled.