Not familiar with P3D2, or Opus. But I recently set up ASN on my network. The client PC actually 'mirrors' what you would see on the Server. All the set up info is in their very detailed manual. You do have to navigate SimConnect to enter IP number, etc in the Server Sim.config file. Also, you set up a .xml file on the Client PC and place it in My Documents folder.
From the client ASN gives you the same functionality as Server ASN.
Doug
Assuming you would not be using 2 OPUS and ASN?