When you click on an object here; you would find that the helpers will usually shift to that specified object. The object where the helpers are located is called the current object

Note that If that class or objects in the class are hidden or protected in some way, this will not work

If you double-click on an object, not only will the object become the current object but TAD would zoom and pan magically in such a manner that the selected object would appear at the center of the site (i.e. screen) The architect would also get shifted to the first helper.

This particular feature is very useful when you have a lot of objects in the TAD file. You can get to any part really fast by simple doing this intelligent pan