Setting AECPSDAUTOATTACH to ON using dynamo

[david_licona]

have you tried sending the command directly to the command line ?

How to use civil 3D commands in a Python Script?

This will send a command to the command line. import System from System import * input = IN[0] app = System.Runtime.InteropServices.Marshal.GetActiveObject("Autocad.Application") adoc = app.ActiveDocument adoc.SendCommand(input) OUT = str(input) + " sent to command line"