If you are using any CI tools, you may prefer to have those trigger tests automatically. We describe the process in this article
You configure scheduling a test by navigating to the Tests page and selecting a created test from the tests page
Next, you can select Schedule from top menu
Test schedule pop-up window will appear
Click Save schedule upon completing test scheduling configurations for selected test.
Finally, you may want to setup Notifications to be aware when a test has been started and completed.