PLAN2D.2 Layer groups: folders in the Layers panel

Asked: a layer manager to group layers for walls, existing, services "instead of it all being in one long list", and to set up layers for drafting new.

Built in the lab: folders that fold, group switches for on, freeze and lock, Find a layer, a ready-made set (Existing, Proposed, Demolition, Services, Annotation), Group by name, drag a layer onto a folder, LAYGROUP. Saved in the file; the layer table stays flat for other programs.

Not done: AutoCAD's own layer group filters are not written, so AutoCAD shows a flat list.