Move a Horizontal Geometric element with linked elements

Hello,

      I am laying out a rough placement for a roundabout. I have the splitter islands and approach lanes dynamically linked to the inscribed circle, all were placed using the horizontal geometry tools. I want to move the location of the center of the circle but it does not allow me to shift its location.

Is there a way to retain the dyanamic relationships and shift the circle?

Thanks, 

Emily