Hi Michael. It seems you could place a "bounding box" function within the Box command, and not lose much UI space. There could be a BBox option within the Box dialog. Having a physical bounding box object can be really handy, especially once you add dimensioning tools in later versions. I very often create bounding boxes in "modeler R" so i can quickly check measurements, resize objects, and draw dimensions. Sometimes it's the only way to find the extents of an irregular shape... If a BBox can be created, then the area centroid can be found by drawing a diagonal line from one corner of the box to the opposite corner. Midpoint of that line is the centroid. Then any object could be easily recentered at zero from the midpoint of that line...

jonah