Folders in attachments

I have a client who wants to use Smartsheet as a central repository for all data pertaining to a tech kit install. 

My Client requires folder hierarchy in attachments on a row. They require this to have better visibility of attached files on a row. Each row is to have a details of a piece of tech kit installed with a customer. The main reason for folders is to neatly store info in logical folders , tech drawings, pass certs, training guide pdf and movie, and reports for items on a row. 

I know this is not currently available but would it be possible to have this as a feature in the future.