Reference a collection of boxes

Unlike referencing curves or surfaces, grasshopper wants me to reference a box by actually drawing it. Highlighting an existing box in Rhino does not create a reference to it in Grasshopper. I want to reference a collection of boxes then step through the collection, transforming each box a bit differently, giving the appearance of an irregular brick wall. Any suggestions on how to reference a very large number of boxes in Grasshopper would be much appreciated,

Another option would be to write a script in Rhino, but that brings up a different set of problems.

in RhinoCommon a Box is a Plane + 3 Domains

you can bring “cuboids” into GH as Breps

Thanks - works like a charm.