These are accessed from a blank page, via the Avada Studio Button on the Starter page, or at any time on a normal page from the Avada Library icon on the Toolbar and then the Studio tab. These are full page templates.
To add this page template content, just mouse over the desired template and replace any existing content, or add it below or above any existing content. A dialogue appears, showing the import process, and the content appears in the builder.
One thing to note here is the Avada Library > Websites tab. This is simlar, but diffferent to Avada Studio Content. Both are full page templates, but here, you can import any of the individual pages from any of the eighty plus prebuilt websites. This area has also recently had a makeover, and with Avada 7.5 and up, this content now imports with images.