Scale wizard

Not a must-have, but certainly a nice-to-have.

Currently, when working with large objects (things bigger than 80 meters in size -- or even kilometers long), there's a lot of hunt-and-peck needed to get everything set so that Blender can smoothly handle view clipping, render clipping, bevel behavior, light behavior, and a number of other things.

Some kind of wizard to make quick work of setting all of these variables for an optimal work-flow for a set scene scale would be nice.

I know of at least one 3D program that makes working in micrometers just as easy as working in meters or kilometers. So I imagine it's possible.