Move items with arrow keys & Shift-arrow keys for 8 pixels

You can move items on the block diagram and the front panel with the arrow keys. In addition if you hold shift as you do this it will snap the item to the next grid line of the current window. Pressing Ctrl+Shift+3, a.k.a Ctrl+# lets you turn off and on the grid snapping on your front panel. While it is off, Shift+arrow keys will move items in 8 pixel increments.