I don't see four "tabs", but I see four buttons... I understand what the two on the left do, (connect and auto-reconnect) but have no clue what the other two do. There's no tool-tip or documentation on what they do. I don't like to randomly click buttons that don't say what they do
edit: I'm assuming the yellow one is to put the server to sleep, and the red one is to shutdown the server, but I have neither button highlighted on any of the servers, yet they still go to sleep.