I'm considering getting the Apple Magic Keyboard for use with my iPad Pro and I have some questions.... I am aware that there are hot-keys for adjusting the brightness, volume and rewind/play/pause/fast forward. However, what happens when you press some of the other keys in the top row such as Esc, F3, F4, F5, F6, Eject?? Do they have any function on the iPad Pro? Using the keyboard, is there a way to call up the task switcher? (I don't mean using cmd-tab, but the task switcher that comes up when you double press the home button). Is there a way to lock the screen from the keyboard? Or to activate Siri?