I ran into a similar situation. My problem with using Fixed Schedule is that I could not figure out how to include a start and stop time. Looks like it would run in hourly intervals for 24 hours when I really only need watering between 10 AM and 6 PM (8 times). I solved it by just setting up 8 separate schedules, but that was a little tedious because you can’t save a schedule with a different name.
