You can duplicate a pre-existing zone in your zone record using the option Duplicate. This enables you to have the same zone but with a slight difference in configuration.

To duplicate the zone:

1. Access Settings > Stores > Delivery zones and Fee.
2. Choose Draw Zone.
3. Hover to your desired zone or click the right-arrow icon. 
4. Click either Delete Zone or Duplicate Zone depends on your usage. 
   

5. By default the new zone will be named Duplicate @the original zone@, you can change it for better differentiation.