To enable multiple RDP sessions for a single user in a terminal server

Hello Team,

In our environment, we have set a group policy setting from Domain Controller such that each users can have only a single RDP session to a terminal server. 

But now we are having a requirement such as some users alone would need to have multiple RDP sessions for the same user account in the terminal server.

So could you please let me know if it's possible to implement the  below in anyway.

1. To create a group policy setting, such that user's of a particular group can have multiple RDP sessions for his user ID in the server

2. All the remaining users should have a single RDP session access alone to the server.

Server OS: Windows server 2008 / 2008 R2

Thanks in advance and please let me know if you require any further information.

Regards

Sathish