When you select Define PinPoint Origin 
on the PinPoint Ribbon, the Define PinPoint Origin ribbon bar is displayed.
Save PinPoint Origin
Saves the currently displayed X and Y values for each sheet in the document.
Target X
Locks the horizontal distance between the target point and the current pointer location to the value you type.
Target Y
Locks the vertical distance between the target point and the current pointer location to the value you type.