ZBrushCentral

How to use shadow box with image planes?

Hey,

So i have set up some image planes under the Draw Menu. Got them working just fine. i understand that bit.
Now lets say I want to use shadow box to create meshes using that reference. Now this is the problem.
When I use shadow box, all the existing meshes move in relation to the referece. Am I doing something wrong?.. I can’t seem to find a tutorial on this, but i did see the pistol in the demo projects that seems to use the same set-up.

What is the workflow for something like this? should I even be using shadowbox with these planes?

cheers