How to get the Using Custom Properties with Parcels in Dynamo for Civil 3D?
What custom properties you’re looking for? Could you drop screenshot of it here.
I don’t see anything in the C3D API that would expose user-defined property classifications. A workaround would be to leverage property sets in C3D should you wish to tag these objects with additional data.
@durasovartyom it is possible through COM API, I’ll add it to the Civil 3D Toolkit