How to populate Folder to store rule and Group

Hi all,

I launched Grafana plus Loki using steps in Getting started | Grafana Loki documentation . Further to this, I am trying to create an alert. But when I save the alert is prompts to set the ‘folder’ to store rule and ‘group’ should not be empty. I do not find a way to populate these. Need help please. Is this a configuration?

Thanks!