To manage virtual CD/DVD-drives, open Virtual Devices sub-menu.
To add a virtual drive, select Add SCSI/IDE Virtual Drive menu item (see the screenshot above).
To mount a virtual drive with an image file, choose a needed virtual drive from the list and select Mount Image menu item.
To unmount a virtual drive select Unmount Image menu item (available if the virtual device has a mounted image file only).
To Eject/Load Tray just select the corresponding menu item (available if the chosen virtual device is mounted with an image file only).
To view virtual drive properties and features, choose a needed device from the list and select Device Info menu item.
To change some of the virtual drive settings (drive letter, DVD region, vendor name and so on), choose a needed drive from the list and select Device Parameters menu item.
To remove the virtual drive, select it from the list and run Remove Drive command.