To create a custom image:
On the User Settings page, under Custom Images, click Create custom image.
In the Name field, provide a name for the image.
Under Select database type, click the database to create the image for. You can only create images for Oracle.
Provide the configuration details. For a list of the configuration fields, go to Oracle image configuration.
Click Create.
To edit an existing custom image:
Under Custom Images, click the edit icon for the image.
Update the configuration. You cannot change the database type. Oracle image configuration
Click Save.
To delete a custom image, under Custom Images, click the delete icon for the image.