You can use a set of predefined VMs or disk images, or you can import VMs to create your application.
You can import VMs or disk images as a separate action or you can import them while creating an application instance. Imported VMs are managed on the Library > VMs page and are used to create application instances. For disk images, go to Library > Disk Images.
Note:Before you import your VM or disk images, download and install the VM Import tool. See Installing the VM Import Tool.