Replay tip - how to quickly switch player's vision

There's a nice hotkey to switch views when watching a replay. Maybe it is to damn obvious, but i surely haven't noticed it. The F keys change the view of the players. This way we can get a quick glimpse of wether that player is seing that hidden probe or not without having to click on the player drop box. Pretty useful to me.

F1 to player one

F2 to player two

and so on.

Quote from Jame: I also find it very informative to switch between the Production ("D" key) and the Units ("U" key) information windows. That way you always know what both players are doing (Press D), and before a fight begins, you can tell who has the biggest force (Press U).

Also interesting to judge the level of players is the APM (Actions Per Minute) tab, press the "M" key to find out how high the APM is in this game.