Hi Michael,

While I have not personally tested it, seemingly whether by ADO or OLE DB, the Database Connection can be hosted by the JavaScript interpreter.
https://www.google.com/#q=ole+db+javascript
https://www.google.com/#q=connect+html+page+to+sql+server+database+using+javascript

Does anyone on the forum have direct experience with this?

Maybe your V4 could expose the objects' unique UUID and provide a method that uses it as a parameter to select the object.
Because SQL Server has a hierarchy data type, grouping could be managed externally.
Of course SQL naturally treats all data as Boolean sets.
I would be willing to help with the SQL code, i.e. Stored Procedures, etc..

-- MindSet