Is it possible to run multiple device emulation at the same time in Simulator Xcode?

Question

Apple Xcode

I would like to test the layout of sites simultaneously on several devices. In the Simulator menu, it is possible to switch, for example, to Iphone 4S or any other, but you need to wait until the selected device boots up and re-enter the desired site, regardless of whether it was previously selected or not.

Answer 1

Available.
Although this imposes some problems (eg the debugger will not be able to work correctly with two simulators enabled).