The June 2014 update for the Xbox One lets you rearrange the square "pin" icons that decorate the left pane of the system's dashboard. That's handy! So how do you do it? And why might you need a mirror? We can explain and make it easy for you.
1.) Have SmartGlass (And update it)
Sorry, but you can't rearrange your pins on the Xbox One itself. You might have had visions of waving your hands in front of a Kinect, channelling your inner Tom Cruise as you moved each pin. Nah. It might be nice to do it on the system via a controller or Kinect, but it makes the most sense to do it with a touchable interface. Hence, SmartGlass, which you can get for an Android or iOS device. If you already have the app, make sure it's updated.
2.) Swipe over to your Pins in SmartGlass
And click the three-dot icon...
3.) Press and drag the pins to rearrange them
This will feel normal for anyone who has used a smartphone or tablet interface before, though you might be thrown off by the fact that the pins are vertically stacked.
So if you grab one from, say, here...
... and you want to move it one square to the right, you'll see that the one below it moves up. And the one that was on the column next to it slides over and under to be the bottom pin on the original column. See?
You can also tap a pin and select "unpin" to remove it.
4.) Prepare for your newly-arranged pins to flip
It's not clear why Microsoft did this, but when you're editing your pins, you're actually editing a horizontally flipped arrangement of your pins. What's left is right. What's right is left.
Thus, what you see in SmartGlass while editing your pins is a mirror of what'll appear on your console.
When you take one step back out in SmartGlass and just start swiping through the SmartGlass dash? Then you see your pins in their proper order.
If you are smart enough to be using 21st-century electronics, you can handle this. We just thought you'd like to be forewarned before assembling the perfect left-to-right arrangement.
5.) Oh, wait. You knew how to create a pin, right?
Just in case all this was a cart before your horse, to create a pin in the first place, all you had to was (using the Xbox One) find an icon for a game or app you like, possibly in the "my games & apps" section; press the three-line "hamburger" button on the Xbox One controller (to the left of the X button), and select "pin to home."
By making a pin you've essentially created a shortcut to start the game or app from the front of the Xbox dashboard rather than having to dig to find it. Creating a pin sends it to the front of your pin stack. Which brings us full circle to why you might want to rearrange them.
There you go. Easy peasy.
With that, you can customise and configure your Xbox One dashboard and get to your favourite stuff faster. A rare win for those of us who want some control over what's on our console's dash!