Sometimes we might need to work in multiple Dynamics CRM projects at the same time. It may not be that easy to switch between servers of customers and progress our work. Also its not easy to remember the connection details, logins etc. I would recommend to use Remote Desktop connection manager to connect to various client servers. I got appreciation from my manager that I am well organized when he noticed that I use Remote Desktop connection manager for various servers. Well its a good time saver. Just imagine how long it takes to connect to each servers or finding connection details etc. Highly recommended when you need to handle multiple clients at the same time. The key point is its really easy to switch from one customer to another. And finally its a free tool from Microsoft.
Its not a tough nut. You could easily play around and practice more. If you right click and select properties, you could configure logon credentials etc for each server. For instance, Customer 2 Dev represents server connection whereas Customer1 is a group.