Engipedia Topo Shaper
The main purpose of the tool is to shape topography instance with the help of model lines. The tool adds additional topography points along selected model lines. Line division can be per the number of points or per distance between points. If there is more than one topography instance, the tool will prompt you to select only one.
All model lines are supported: lines, arcs, ellipses, curves, and nurbs. Make sure that the selected model lines are not closed loops, otherwise the tool will warn and ignore them. If there are closed loops (circles, ellipses) to be used, then they should be divided into 2 or more parts with Autodesk® Revit® Split Element tool.
The topography is a mesh object so points division should be thought carefully. More points do not mean better results.
An additional feature is saving current topography. The current state of topography can be saved into a CSV points file, and the original state can be returned later using Revit Massing & Site > Topo surface > Create from Import > Specify Points File tool. Saved topography points CSV file is always in meters.