How to use: Toggle Line → click a wire in one loop → click another wire in the same loop. The new cyan line becomes part of the loop and is splittable too. Cannot start and end on the same wire.
Drag points with the gizmo. Esc cancels drawing and deselects. Shift + click to select points while drawing.
Faces: Toggle "Faces" to show/hide extracted faces from closed wireframe loops. Faces appear as semi-transparent blue surfaces.
Selection: Left-click + drag to select. Green box = left-to-right (selects only fully contained objects), Orange box = right-to-left (selects all touching objects including nearby lines). Click points or lines to select. Shift + click/select to add to or remove from existing selection.