My first site build with X is very cool. But my client is about to wreck it with “edits”. Considering your licensing setup, how do you recommend I backup the site, so I can restore the backup and start using it for other websites?
Sorry but we could not give recommendation on that as it depends on a lot of factors. You can use a plugin like Duplicator or WP Migrate DB (see https://community.theme.co/kb/cornerstone-migration/). Managed WordPress hosting also has built-in features so you can easily copy a site. Please take note that this is beyond a theme’s functionality and is outside the scope of our support so I recommend you seek help from a WordPress developer so you could work closely on your project.