You're on fire with these view-enhancements, Tom! I think at this point the only thing missing is a "store UI state in shareable URL parameters"-view, you got almost everything else covered, no?
Gotta agree that you are on fire! Θbservable's API is really general, and you are squeezing tons of composability and programmability out of Θbservable's API. Excited to see the possibilities explored here and in your future work.