This might just be a simple answer that I'm not seeing in the standard PDI scheduling options but I'm trying to schedule a Job to run every 3 months rather than monthly.
I can see under the Monthly option that I can only select a specific day of each month.
Under the Weekly option there is the ability to choose to run a Job every X days, it would be nice if there was an equivalent ability under the Monthly option and then I could choose to run it every 3 months. However, this is not an option.

Is there something I'm missing or will I have to try schedule it Monthly and then build some extra logic into my Job to determine if the Job is running for the first time in a Quarter and suppress the output of the results if it is not the first time?