Release : 11.3.6
Component : CA Workload Automation AE (AutoSys)
In this instance it may be easier to use a standard calendar and add the few selected dates.
But to accomplish the same task using extended calendars does require using cycles as well.
here is an example:
The above creates a cycle "cy1".
It has a period of 1 year.
Then create the extended calendar, telling it to use that cycles and select every Wednesday during the period with the condition that the WEEK is an even week of the year.
NOTE - A period cannot exceed one year but you can add multiple periods to a cycle if multiple years are involved.