nDisplay share viewport option missing?

I need to render something to node_0’s viewport and read the result in a post-process mat applied to the camera rendering node_1’s viewport. The AI dev assistant and documentation suggested this is what texture sharing is for, but try as I might, I can’t get it to even show up as an option.

I am testing this on both 5.6 and 5.7. I added the textureshare plugin to the project (nDisplay template), but when I open the nDisplay configuration and select a viewport, the details panel does not show a toggle to “share viewport” nor does it show the related sync options (this is what the documentation suggests i should be able to see: nDisplay 3D Config Editor in Unreal Engine | Unreal Engine 5.5 Documentation | Epic Developer Community ). I tried exporting the config to json, setting “isShared”:true on VP_0, importing, then exporting again, and it’s back to false.

Any help getting textureshare to work or solving my problem some other way is appreciated.