You can now edit weight maps and vertex color properties numerically using the weight editor. See Weight Maps and Creating and Editing Color at Vertices (CAV) Maps.
In addition, you can specify the vertex color property to paint on in the Brush Properties Property Editor. This overrides the default vertex color property set in the Material Node Property Editor.
Scene layers can be nested under another scene layer. This allows you to use the parent layer to control multiple child layers.
Scene layers can be nested only one level deep.
For more information, see Nesting Scene Layers.