F1 centers the camera on your hero?
That is useful information. I always clicked on my portrait when I lost sight of the character due to misclicks or other moves and by then it's usually too late. >_>
f1 always selects your hero in warcraft 3, it carried on to dota.
if you are bear and you press f2, you will choose your bear
if you are meepo you can press f2, f3, f4 and select your clones respectively.