You can use this features for creating showcases. Go to Dashboard→Showcase
Create a Showcase
Click the “Add New” button at the top of the page. This will take you to the New Showcase, which has the WordPress editor and all the settings for your new showcase.
In the top box, you’ll enter the title of your new showcase. The editor area is where you’ll enter the text of your showcase and insert images. As you are filling out the various fields for your new showcase, at some point you’ll notice that a permalink field will appear directly under the title. A permalink is often called a “slug” and basically is the address or URL of the page you are creating. WordPress automatically determines the permalink based on the title you entered. If you don’t like the permalink WordPress creates, you can click the Edit button next to it and change it to something more suitable.
After that start to fill with content you showcase page. You can do this using WPBakery Shortcodes. Here you could find all the detailed instruction about WPBakery Page Builder