The Designer Collections are preset with an 800px width, managed via Advanced → Custom CSS, and can be easily customized to fit your needs.

To change the title, click to open the List View top left. Click on the sections to find the section you want to change. You will see 3 sections; an an icon, a product title, and a text section. Click on the text section, then go to the panel on the right, click on Advanced, advanced at the bottom, then Additional CSS class(es). Remove hidden to reveal the content. Add your text, then add hidden back to the Additional CSS class(es).

This icon is the link button. Once imported, you can safely delete this container.