View and edit same document on multiple devices simultaneously.

Need the ability to have multiple devices logged on to the same account to be able to view the same document simultaneously on all devices. Also need to edit this document on any device and see those edits on all other devices via iCloud.

Pablo Silva Commented

When using Google Drive in CloudOn: it becomes very inconvenient when I have the same document open on the computer and iPad simultaneously. Any edits I make to the document on the iPad generates a new document with the incorporated changes in the Google Drive folder. Ideally the changes should update the original document, rather than creating another whole document. Thanks.