Being able to see a list of friends in a specific server you are in.

So I had an idea where if you and your friend are in a similar server. You will be able to see it. But not via your friends profile. But by actually through maybe some kind of server list thing. Im not sure about the defails. But it would be very convenient to be in a server for example that you are new in and would be able to just go to an option and view which people who are currently in the server are in your friends list. It would be convenient and comfortable and able to manage things easier.