I am looking for a way to have a document viewed in inventory to have a similar right click interaction and inventor object item rotation like one can enable for hotspots via AC.
So if there's a document open as menu item, there could be a button enabled on the dotted line in here:
https://imgur.com/n46FqBu
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By "rotation", you're talking about the cursor cycle?
You can add a Button element to your Menu to make it interactive, but it won't react to the cursor in the same way as Hotspots.
If you want to make it behave like a Hotspot, better to just make it a Hotspot.
This could either be a case of replacing your Menu with a Hotspot prefab that gets spawned in front of the camera, or by using a Unity UI-based Menu and attaching a GameObject that has both a Hotspot and a Box Collider component. It's position would have to be correct in world-space co-ordinates, however - not UI-space.