Create Subregions from CAD file

Hello community,

I would like to know if it is possible to generate subregions in a topo based on a list of curves from a dwg?

I have started the definition but I cannot find a subregion node or I am not sure if there is a package that could help us with the exercise.

Revit file, dwg and dyn attached.

Drawing1.dwg (1.0 MB)

topo.rvt (1.9 MB)
Generate multiple subregions.dyn (11.8 KB)