With FileFlex Enterprise a data room is a folder located somewhere on the storage infrastructure that the user shares with someone and allows them upload rights. The recipient has visibility to what is in the folder and they can add files to the folder by dragging and dropping them.
Virtual data rooms can be refined on a user-by-user basis to 'view-only', 'view & print' only, downloading permitted, or with editing rights and access can have an automatic expiry. For example, you can make some recipients observers only where they can access the data room but are not granted upload rights.
All the sharing options can be set on a user-by-user basis with different users of the data room having different permission levels.
You can grant as many recipients as you wish access to a data room. There is no cost to them to access the data room, there is no additional cost to you in the creation or sharing of a data room and you can create as many data rooms as you need.