Refuse multi-track; result track always Arrange; follow panel tail. Rho-F2 overrides the mode-following framing: explicit Arrange tags on track and item, plus an explicit-tag-wins filter in detectNewContent.
Product notes for rendering a track's output to a new sibling track at the exact render position, source parked in Design mode, bank never touched. Framed as a third verb (arrange->arrange), not an exception to capture/placement separation. Three open forks.
daniel