i can’t understand how i can insert the corner top right full screen button in interface builder like this image:

and then also a bottom bar like this:

if i create a new application in Xcode the Window is this:

and there is no corner full screen button and no bottom bar…any help?
In Xcode 4.5.2 there is an option in interface builder to set this feature on (just select your window in IB, the option is named “fullscreen” in the window’s attributes inspector, and is set to “unsupported” by default, just switch it on “primary window”)
For the “bottom bar” … i think it’s just a NSView that is smaller than the NSWindow ^^