I find old answers to this. I can go to Object Properties->Display As->Bounds. But you can only do it per object. So you can't select all 100 objects lets say, to view as their extents in a box wireframe format. You would have to do them one at a time. And even if you could select all 100 or so, going back and forth would be tedious.
3D studio has a hot key to switch the viewport into this mode so that all objects suddenly show their orientation as simple see-thru boxes. Either way, when lining up the edges of irregular shapes, it helps to display them constrained to an outline resembling a box (be it oblong/rectangular/etc).
Surely there is an easier way? Thanks for the help.