You should install the most current Simulator. You can get this from the Downloads section of the BB10 Developer web site:
Once installed, start the Simulator. Immediately it starts up, you will, in the 'console', get the option to choose which device you want to emulate.
Note that if you choose a keyboard device like the Q10, you may only see the 'screen' - you can use your PC's keyboard to emulate the keyboard.