You may want to check out the Parameteric Models demo that comes with Verge3d as a sample project.
Oh I did! I already have a parametric model of my design. I just want to know if is there a way to import the parameters that I modified in verge3d to blender. If I put the furniture lenght to 1.2 meters, that I can extract that data from verge3d (or the hlmt) and importe that into my model in blender