Autodesk Navisworks

[#1]

Is there an easy way to check the elevation (z-coordinate) of an element or a point. The elements in the model that I am working with do not have this attribute.

[#2]

Measure tool is it.  You don't have an ID point like AutoCAD.  In NW, you will need to have the Measure dialog box open, then pick a couple points as if you wanted the distance between the two.  In the Measure dialog you will see the absolute point values and then the difference values.