When playing a video game in full-screen mode, you can easily swap to another window by pressing “Alt + Tab.” You can do this to pick up a call or reply to a friend’s private message. This shortcut works even when you’re using multiple screens. If you want to swap screens, you must place the browser or app on the other monitor beforehand. That way, you can usually keep the game in full-screen mode on your main screen unless the game’s settings are different.