D) I'm still struggling with the concept of a "SandBox" Teiid. If a user has multiple Teiids and there are Connector Types that don't reside on ALL Teiids, then as a user, I'd have to work a little harder, switching between "SandBoxes" as I try to create source models, wire them to different Teiids for the purpose of "Preview Data ". I think the Hidden VDB concept is still the cleanest paradigm. User need only Import/Create Sources. Create View models. Assign/change/swap (DND) models to connectors deployed on any Teiid and the Preview Data just works. I can also have a source model bound to connectors on multiple Teiids. As long as we decorate (via Model Explorer AND Execution/Connectors/Teiid View) this connectivity we should be good to go.