1. Go to Pages > Add New.

2. In the right sidebar, click on “Template: Pages” and select “Swap Template“

3. Click on the template called Full Width Template.

4. Click “Superb Addons” in the top menu bar.

5. Click Pages.

6. Find a template you like and click Insert. (Hint: You can click the eye button to preview the template)

7. Make any changes you’d like to the design and click Publish.

8. That it, here’s the result from the page I’ve added with Idea Flow Premium:
