Designers can set the current scale of a viewport or model space view, and then apply that scale to each object and specify its size, placement, and appearance based on the scale set for the viewport. In other words, annotation scale is now automated. Layers per Viewport In AutoCAD 2008 the has been enhanced to allow users to specify color, line weight, linetype, or plot style as an override for an individual viewport. These overrides can be easily turned on or off as viewports are added or removed.