Pipelines schedules

Hi.

I am having an issue with the scheduled pipelines (I know it's an alpha feature, but still...).

I am creating a new schedule by selecting a branch and the custom pipeline that I have defined. I select "hourly" in the drop-down (why is there no choice of "how many hours between runs") and then click create. And nothing happens. The GUI simply looks like I have not created a schedule and nothing runs.