Keyboard shortcuts trigger for Quiz

Hi,

I am making a quiz regarding keyboard shortcuts, and I'd like to use keyboard keys as the correct answer to a quiz. I have tried using the "user presses" trigger for CTRL, SHIFT, letters, and Function keys. So far I can't seem to add the Windows key as an answer. For Example, the shortcut to locking the windows is (Windows key + L) and I'd like for the answer to be triggered if the user presses those keys, is there a workaround to enable windows key to be registered as the correct answer? 

Thank you.