You can use the Edit Virtual Private Cloud dialog to edit the description of a Virtual Private Cloud resource for the target AWS platform.
In the Web Interface toolbar, select the Platforms tab.
Select the platform, then click Edit.
Under Associations, select the Virtual Private Clouds tab, then click Edit (or double-click the virtual private cloud) to open the Edit Virtual Private Cloud dialog.
Modify the Description for the Virtual Private Cloud resource.
Click Save to update the Virtual Private Cloud resource.
Click Close to exit the dialog.