Currently we do some development and monitoring over 1 RDP account (administrator) to a server 2008 r2 machine, as everyone needs to share the same instance of everything to ensure consistency. The problem is that while one person is connected and working away, if someone else tries to connect using the same account, it will boot the first person off and yield control to the second person. The only warning comes a bit too late, when the first person receives a message saying "Another user connected to the remote computer, so your connection was lost".
Is there any known way to warn the incoming user that someone is already connected (similar to the type of message you might get when working with different accounts), or to allow the victim the option of not being booted?