So I finally get an invite to DotA2. The "Learn how to play" buttons are disabled. I've figured out that hitting the "A" key and clicking on the map with my mouse will move my character there and will attack an enemy when I click on it, but camera movement uses the arrow keys and will not move with either the character or the mouse. I don't know how to heal or do anything else. http://dev.dota2.com/showthread.php?t=21361 is the best result a Google search dota 2 controls can get and it's vague. I don't see any sticky threads for DotA 2 controls. What's going on?