If the request is to add an additional job in an existing schedule in which one or more jobs already exists to run once on weekly basis.
The new job require to run twice daily in the same schedule. A combination of two different run frequencies in one schedule.
Release : 12.0
Component : CA WORKLOAD AUTOMATION DE (DSERIES)
You should create a separate application that contains the job that you wish to run twice. The event that is associated with that application should then be set to run during the scheduled times that you wish and the job will execute at those defined times.