Xcode Instruments - Enable NSZombie Detection? Where is it?

Question

I have watched this video http://www.markj.net/iphone-memory-debug-nszombie/

The guy shows an option called Enable NSZombie Detection on Allocations inside instrumen

Answer 1

In XCode 4.0, this 'Enable Zombie' option is only present in iPhone simulator and not when you profile on actual device.