Scan cleanup

Scans pick up things that don't belong — a person walking through, a parked car, a reflection. Arm Clip points on the rail and drag a rectangle (or draw a polygon) around them, then choose: Keep outside hides what you fenced, Keep inside hides everything else. The clip applies to both the point cloud and the splat, everywhere the scan is seen — including share links. Nothing is deleted: Restore all brings every point back.

If the whole model sits slightly tilted or rotated, Align scan on the rail trues it up from two clicks: in the plan, click two points along a wall that should run straight — the scan squares to it. In an elevation, click two points along a floor that should be level — the scan levels to it. Reset returns the scan exactly as imported.