In order to keep SharePoint lists indexed, organized, and readily searchable, many people rely on folders. In SharePoint 2013, by default, only Document lists display the New Folder icon on the Ribbon. This can be easily remedied by adjusting your settings to make the New Folder command available. In this article, we’ll show you how to display the New Folder icon on the Ribbon for all of the different types of SharePoint lists.
To begin, go to any list on your site and select List Settings from the Ribbon. In this example, I will be configuring the list using the Custom List settings option.
From the Custom List settings, select Advanced Settings:
In the Folders section, under the Make New Folder command available, select the Yes radio button and click OK:
Return to your list. Under the Items tab, you will now see the New Folder icon displayed on the Ribbon: