On the 24\" iMac I\'m using at work I cannot scale the iOS Simulator\'s window. The 100% and 50% menu entries are greyed out (and the keyboard shortcuts don\'t work either.)
I solved this problem by changing the resolution of my Macbook Pro screen to biggest supported value, And increase the size of the simulator by drag and it's work!
I can now attach iPad screenshot. Thanks Apple it's totally easy like always!.