One window for all Corona masks and render elements. You create masks, LightSelect,
LightMix, Corona channels and control their order — fast, without running around
the rollouts. Tailored for archviz: glass, ForestPack, carrying settings between scenes.

Let me just list the highlights:
• Mask from selection: one for the whole selection, or one mask per object.
• Mask by material — the eyedropper: you click an object and the mask is built from
ITS material via Material G-Buffer ID (numbers from 101 up). On a Multi/Sub it takes
the sub-material under the click, not the whole multi.
• Glass masks: from the selection, or all the scene's glass at once. All-glass objects
go in as objects, mixed ones — automatically via Material G-Buffer ID.
• ForestPack masks: the forest goes into the mask together with all its scattered
geometry. A new mask, or adding the forest to the one already selected.
• The order is changed by dragging rows.
• Right-click a mask — select its objects in the scene; right-click an object in the
list — select that object.
• Double-click an object — select it with its instances; for a forest — with all its assets.
• Objects are dragged between masks with the mouse (with Ctrl — a copy, without — a move).
• Find — a live filter over the mask's objects.
• + Add / - Remove scene selection — add/remove the scene selection from the mask's contents.
• RGB packing: three mono masks into one RGB and back — with no settings lost.
• Presets: the whole set of elements with all their settings into a preset; it is picked
up in any scene.
• Export sel. - the selected masks to a file; Merge in pours them into another scene and
finds the objects by name.
• Fog->black - fog stays black in the mask/alpha.
• Kill propagate - turns off Propagate masks on all materials.
• Clear paths - clears the output paths of render elements AND Render Output in Common.