How do you call target?

[Terransheep]

when I was attacking a monster, I tried pressing T, but it doesn't work the way it was written on the game box. how do you really use it? The button is suppose to send a message mention what monster you are attacking. Please help

[REI ONRYOU]

I believe that you have to either Ctrl+click/double click the target, or press Ctrl+Space to call the target. In the chat box, you'll see "I'm attacking xxx. Press T to select my target." Everyone else in the team will then be able to target them by pressing T.