Found in current project: the arrow key "nudge" listeners will scroll all diva panes the same amount at the same time regardless of which had focus most recently. There's no way to dictate which one I'm intending to scroll.
Fixed by adding multipleDivaController class that listens for clicks and marks the nearest related diva pane as being active; active in this case means "actively listening to DOM events."
Found in current project: the arrow key "nudge" listeners will scroll all diva panes the same amount at the same time regardless of which had focus most recently. There's no way to dictate which one I'm intending to scroll.