The stage, a run's node map at full size (pick the run; each run step has "see it large") and the materials picker share the side column; the switch sits in the window's title bar on the AI page, the shown one again hides the column, and each view keeps its state. The task header stays on top while the timeline scrolls. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>