I wonder how to represent Shared Coordinates (Named) Graphically in Revit, when i am the bimmanager (maybe later in life) 
that says “we work with shared coordinates!”.
Its a campus site, so repetitive Links in different rotations and positions
Does the API allow that?
This question came up when i saw @dana.defilippi 's last youtube
God I’d love some way of visually identifying which coordinate system a link is using…
I think you can check if a model is using shared coordinates using this property:
https://www.revitapidocs.com/2020/c4beb95c-34c9-0a9c-05a0-562bd0c98b81.htm
An add-in checking for an event like loading a model, or just running a check across multiple files opened in background would probably be the go if you wanted to view the coordinate system(s) in use for models.