Hi hhal - there are controls at mesh export time which allows you to generally control the density of the created polygons, by different metrics like controlling the maximum angle between surface normals at polygon corners, or the maximum edge length.

Those controls are on the Meshing options dialog and described here:
http://moi3d.com/3.0/docs/moi_command_reference11.htm#meshdialog

There isn't any way set up though to create a mesh of a fixed number of divisions in U and V. The reason why is that in the most typical case a NURBS model is made up of a collection of many different surfaces all of various sizes, with some big broad surfaces and other smaller fillet surfaces for example. Putting a fixed number of divisions along U and V in each surface on this type of typical model would result in a weird structure with the small fillets having super dense meshes (since the surface itself is small).

So there is not currently any option for that since it would produce weird results in the typical multi-surface case.

Maya kind of has an older style interface especially for NURBS, where they just stuck in a whole bunch of complex controls without really paying much attention to how user friendly it is to people who don't have a math degree. MoI has a much different focus where it's trying to make the whole process easier to use and so in MoI there has been care taken to avoid putting in complex options that are only applicable to special cases and would produce weird results for general use.

- Michael