Inbound copying to the server?

Hi Guys,

One of our client is asking if it is possible to allow copying FROM the Remote Client Computer TO the SERVER. But not FROM  SERVER going to the client.

How we could achieve this? Any idea or suggestion guys?

By the way, the server is running on Windows 2012 and clipboard copying is disabled in Group Policy. No third party apps, they will only use RDP.

Thanks in advanced!

Arnel