To answer my own question, I was able to do this in Drag & Drop editing by holding Control. I was also able to accomplish via scripting (After loading the DataMiner Core DLL): var dms = engine.GetDms();...

Upgrading to the latest version, then renaming the stream to something else waiting for the row to update and renaming it back to what we wanted it to be named seems to have fixed the issue without requiring...

To update, I woke up today and (without having changed anything) this is suddenly working. Nothing about the Visio, service or elements has changed, but the Visio test page now displays IPs for both devices....

To update this question, I was pointed to this driver by support: Generic Webhook Alarm Table | DataMiner Docs, which accomplishes exactly what I need.

Adding this as an answer to share some images, to help visualize. Here is what it looks like now. I've replaced the * on the text field in question with <Textfield> to help visualize it (When it...