Hi,
you could export the missing template from your testing environment (trial version). The templates are located in the
Site Manager - Development - Page templates - Blogs section. You can export it using the export button. Please make sure that the code name is not in conflict with an existing template in your system (you can check it directly in the database CMS_PageTemplate table). After the import the template with the same code name would be overwritten. Then you can simply
import the template on requested site.
Best regards,
Ivana Tomanickova