This screenshot is Step 3 of 6 in the Add Standby Database process. Near the top of this screenshot is a timeline indicating the step you are performing in the process. As you proceed through the Add Standby Database process, the timeline will advance appropriately.
The third step in adding a standby database is to select the Oracle home in which to create the standby database. Only Oracle homes on hosts that match the operating system of the primary host are shown at the bottom half of this screenshot. You must provide a Standby Instance Name and Standby Host Credentials.
At this time, you can click Cancel, Back, or Next. If you click Cancel, you terminate the current process and must begin again at the introductory page of the Add Standby Database wizard. This scenario assumes you are continuing to the next step.