In the Savision Live Maps Authoring utility you can highlight a single (or multiple items as shown below) and move them by using the arrow keys.

image 

But a single arrow to the left is often a larger move than needed as shown below:
image

Instead of zooming in for smaller/more detailed levels of moving, use the alt and the arrow key and it moves all items by a much smaller amount.

 

Thank you to Brent who pointed this out to me!