Recurring is set when you create a new job, you can't make an existing job recurring.
- Start a new job from Jobs > New Job (or the New Job button inside the New Schedule dialog).
- Set Job Frequency to Recurring.
- On the next step set the Job Start (required), how often it repeats (days, weeks, or months), and a Repeat until date if there is one.
- Tap Create Job.
It rolls forward on its own. You can skip or reschedule a single visit without breaking the series.
