Since 3ds max is around for some time it might be useful to have a few distance evaluations automatically placed in the sense of "Calculate shortest path between points".
Wherever theres a larger difference (bottlecaps of a coke top and lower circle) there are arrows placed showing the distance.
This especially comes in handy when someone does 3d printing and doesn't want to use your broken free software or switch to solidworks, as a satisfied 3ds max customer.