Zones allow you to add more information to your cluster nodes. For example, if your servers or databases are located in different buildings or countries, zones can be used to add them to the respective cluster nodes.
Example of creating a new zone:
1.) First open the app Cluster (System -> Cluster).
2) By using the button 
you can open the zone overview. In the zone overview you will find all the zones that have already been created.
3) To create a new zone, open the mask for creating new zones via the button 
.
4) Now enter the name of your zone in the Name field. You can then save your zone and use it when creating new cluster nodes.