Activating word highlighting across cells in VScode notebooks

[Himbeereis]

When I load an .ipynb file and I highlight a word in an individual cell, then VS Code highlights all occurrences of the word in this cell.
But it does not highlights the word across cells. Is there a way to configure it to do so?

[rebornix]

Duplicate issue #91808

and it might be possible now with #185351

[Yoyokrazy]

Talked with Joh re: some editor work that was working to solve a similar issue. He solved (#30014) for inline chat via linking wordHighlighters, but it was a somewhat limited fix, as the models had to be identical.

Current thoughts are to create a MultiDocumentHighlightProvider and then refactor a bit of the work within wordHighlighter such that computeOccurences returns a Map<URI, DocumentHighlights[]>. This would create a solution that would solve highlighting across all open editors, fixing split view highlighting, notebooks, inline chat, etc etc.

Part of the issue lies in not having a position when you are computing highlights for the non-primary model aka the non-active editor(s). A pure textual search would work but isn't the most performant. Food for thought.