What is the keyboard shortcut to focus this textfield in Xcode 4.1? What is the keyboard shortcut to get focus inside the textbox pointed in the screenshot below?

I am new to Xcode 4.1. I use Eclipse a lot. 

In Eclipse if we want to jump over any file we can use Command + Shift + R and we get a popup box and we can start typing filename and it shows suggestion, something similar to it I am looking in Xcode.
Its filter Navigator..

And Its shortcut is Command+option+j