Left-drag to rotate · right-drag to pan into a cluster · scroll to zoom · hover a point to preview it, click to lock it and browse its neighbors · hover a neighbor to compare side-by-side. Faint lines mark the selected point's 9 true nearest neighbors — 3D proximity is only approximate, those lines are the real ranking. Switch to draw mode and lasso a region to pop up every image inside it — you can still hover individual points while a selection is active.