Search only open notes

Use case or problem

I make good use of workspace layouts by project or technology that I’m working on.
I usually have many notes open per workspace.
I know the info I want is within one of the notes but can’t remember which one.
It would be great to have one of the search features to be searching against only open notes.

Proposed solution

Add another option under search like path: tag: etc. to be opennotes:

Current workaround (optional)

If my notes were all prefixed similarly or in a folder then I could get what I need but that’s not always the case.