Cross-project Add models to current view

Hey,

So currently it is only possible to add models from within the same project to the viewer, is this correct?
can this be expanded to have the functionality set cross-project?

You are correct.

What are you looking to unlock with this suggestion – cross-project aggregations, but to what purpose(s)?

coordination with third-party info. so the owner of the info always stays owner and the interfaces will have the availability to coordinate without duplication