How to get list Curtain Wall nodes?

[Erenford]

Hello everyone,

How can I obtain a list of nodes/neig for a Curtain Wall elem?
My goal is to create a dimension using API. Column/wall elems are easy enough, since Neig IDs and inIndexes are already given in the documentation. The problem for me right now is on Curtain Wall elems. Its not on the docu and the elem has curiously has only 2 coords on its API_Polygon. Is there another structure that has this info or a function call maybe?

I also tried to manually create dimensions and then peeked at its memo values, below pic is the result

[Erenford]

So... After doing some experimentation I found out that to generate a Dimension for a Curtain Wall I would need to fill up in API_Base: node_id, node_status, special (set to true). This is unlike in Wall/Column which I only fill up the InIndex.

Any idea on what the node_id, node_status (it says in the docu its for internal use) are?