public static void ChangePartOptions(EventDB eventDB, CourseDesignator courseDesignator, PartOptions partOptions)
{
Debug.Assert(courseDesignator.IsNotAllControls);
Course course = eventDB.GetCourse(courseDesignator.CourseId);
course = (Course)course.Clone();
course.partOptions[courseDesignator.Part] = partOptions.Clone();
eventDB.ReplaceCourse(courseDesignator.CourseId, course);
}