Currently Being ModeratedNov 4, 2012 9:38 AM (in response to chrisfromheswall)
Just as you would any other document whether stored on your Mac or iCloud. Open the document & use Save As… by holding down the Option/alt key while selecting the File menu or duplicate the document & then save it. In either case, you will be presented with the standard save dialog where you can give the file a new name.
Actually, all of your documents in iCloud are also stored on your Mac for access when you are offline & will be synced to the cloud when you are online.