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.