Creating your own templates is a great way to clone or replicate a server for work, testing or pre production / new versions.
You can also use the system to create your own 'Master' templates with the exact config you need, and anything required to run your solution pre-installed.
Here's how to convert a snapshot backup to a template:
Navigate to Storage / Backups.
On the list of snapshots, click the Convert to Template option next to the backup you wish to convert:
Confirm the Label you wish to use for the template, and the platform will prepare it for you.
Once ready, the template will appear in a new 'Templates' Menu under storage and will be available in the server built or rebuild drop down.