Event list (6) Action menu (7) 5.4 Cluster management by using the SMUI 5.4.1 Managing zones You can use zones to create groups of clusters. For example, you might create a zone for all  your production clusters, another zone for development clusters, and another zone for test  clusters. You can also give users access to specific zones. To open the Zone Management window, complete the following steps: Chapter 5. PowerHA SystemMirror User Interface  137 This section describes using the SMUI for cluster management. By using the  Zone Management  menu, you can create zones, which are groups of  clusters. An administrator can create or edit zones and assign any number of clusters to a  zone. For more information, see 5.4.1, “Managing zones” on page 137. By using the  View Activity Log  menu, you can view information about all activities that  are performed in the SMUI that resulted in a change. This view provides various filters to  search for specific activities for the cluster, roles, zone, or user management changes. The  Role Management  menu shows information about the available roles for each user.  An administrator can create custom roles and assign permissions to different users. For  more information, see 5.6.2, “Role management” on page 161. An administrator can create and manage users by using the  User Management  menu.  The administrator can assign roles to users. For more information, see 5.6.1, “User  management” on page 160. The area that is numbered “7” shows the following menus options: The areas numbered “6” shows the name of the event, the time when each event occurred,  and a description of the event. The information that is shown in this area corresponds to the  events you selected from the event timeline area. The most recent event that occurred is  shown first. You can click this area to display more detailed information about the event, such  as possible causes and suggested actions. GLYPH<SM590000> User Management GLYPH<SM590000> Role Management GLYPH<SM590000> Zone Management GLYPH<SM590000> View Activity Log 2. Click  Zone Management 1. Click the  Action  menu.