Although we recommend testing all templates in the full Layout Tester, you do have the ability to select and block the templates you want tested for your site.
Now you have access to every template that will eventually be tested for your site. Notice that by default, all templates are enabled. You can view each template by clicking the View button, which will open the preview in another tab. If your site is integrated and ready, you will see your site in that theme. If not, you will get filler text and images to give you an idea of what they will look like. You can also use the search box to look for specific templates. Remember to save your changes!