Here's how you can rearrange and group your Windows 8 tiles on the Start screen. 1. Click and drag a tile to move it on the screen. 2. If you are on a mobile device, hold and drag to move a tile. 3. Pinch to zoom out (or Ctrl-mouse wheel) to make the entire screen shrink and see all tiles on multiple screens. 4. After pinching, you can move tiles around or rename them.
For more, see the original article at the link below.
Group and re-arrange tiles | It Pro Portal