I have found I can configure jobs using the Trigger section in Scheduler Server. You can provide a cron expression, for example
0 0 15 ? 1/1 SUN#1 *
will run your job the first Sunday of each month at 3pm (1500).
For more information about using Triggers, refer to the [Time-based Job Scheduling](https://community.denodo.com/docs/html/browse/7.0/scheduler/administration/creating_and_scheduling_jobs/configuring_new_jobs/time-based_job_scheduling_section) section of the Scheduler Administration Guide.
Hope this helps!