Selecting all keys in frame

Greetings. Can someone tell me if it is possible to select all action keys in the same frame?
Thanks.

Erm, I’ve found a similiar thread - http://www.blenderartists.org/forum/showthread.php?t=17822
I see that the only way is to select the action keys by ‘b’ but it would be good idea to add a possibility to select the keys of the same frame, because I can’t scroll the view (I have no wheels on my mouse :/)