如何放大iOS模拟器超过100％？

I'm working on my project and use Xcode iOS simulator. I want to zoom in more than 100% for iPhone 5/5s screen size, but the maximum is just 100%. I use retina display 13'' Macbook, so I can't see every details what is going on the screen. Is there any solution to solve this problem? I'm working on my project and use Xcode iOS sim