UM New Members is an add-on to Ultimate member to show latest new members in a widget or with shortcode.
To use the widget, simply add the widget in WordPress to your sidebar. To use the shortcode, add the shortcode umnm-new-members to a page.
You can override the template for the widget. Just copy the template in the templates folder to ultimate-member/templates/um-members-widgets/new-members.php in your theme folder.