Each weekly schedule component has its own special events configured on the Special Events tab in its scheduer view. Event times (and values) entered for any special event apply to that schedule only.
Special events can occur one-time only or recurr, such as holidays.
The configuration of special events includes the day(s) of occurrence and related time-of-day events. In the time-of-day event definitions, you can intermingle them with regular weekly events, or completely override the weekly schedule.
You can visually prioritize special events via list order. This allows any overlapping special events to occur in an ordered fashion.
If the special event is a reference type event (it references a separate schedule), the CalendarSchedule component specifies the days of occurrence. This globally changes the days that special events occur in weekly schedules by editing one or more referenced calendar schedules.
The Special Events tab has monthly calendars at the top, the special events table and a 24-hour time pane. The special events table lists all existing schedules by name and summary. At the bottom of the table, controls add, edit and delete schedules. In addition, up and down links sort schedules in order of priority (in case of schedule overlaps). Schedules at the top have the highest priority.
Week (for example, Week 1 through Week 5) and a calendar week(for eample, Calendar Week 1 through Calendar Week 6) are available. 
The Week 1 through Week 5 options divide the month into five seven-day increments, where each week does not necessarily start and end Sunday-to-Saturday.
Instead, the week starts on the specified day one and ends after day seven. The exception would be Week 5, which could have fewer than seven days when the end of the month occurrs mid-week.

By contrast, a calendar week typically starts and ends Sunday-to-Saturday. Although, if the first day of the month occurs
in the middle of the week, Calendar Week 1 contains only the remaining days of that first week, ending in Saturday, as shown here.

A newly-created special event has no events defined. With the special event selected, click in the right-side events column and enter events as necessary. Start, finish, and output controls work the same as in the Weekly Schedule tab.
You can also right-click in the column for an event menu. This is useful to add an all-day event or set the entire day to the schedule’s default value.

All special events take priority over regular weekly events. Among special events, the order in which the events appear in the table defines relative priorities among special events table, as follows:
To change a special event’s priority, select it and use the priority arrow buttons, as shown in the following image.

Right-clicking in the special events table invokes menu options that match the buttons located below the table.
Options may include the following: