MS-I-8 has been given a 'Will not implement' category. No explaination why.

It is worth noting that Revit has been making big strides here with its Toposolids. A lot of functionality is also available in Mstn but not chained together, resulting in poor productivity and UX.

Assumption that users will pay more to 'upgrade' to OpenSite etc is wishful thinking. Revit has made a much more realistic decision and incorporated terrain functionality into its maintream product.