About Using Layers to Represent Multiple Annotation Scales
As an alternative to creating annotative object, you can use layers to control the
display of annotation objects of different sizes or scales in a viewport. This approach
can be helpful when working with drawings that might need to be compatible with legacy
releases of AutoCAD or different products. For example, you might have two layers
named Notes1-4 and Notes3-16 that are used in viewports scaled to 1/4â€=1â€™-0â€ and 3/16â€=1â€™-0â€.
Each layer would contain a copy of each annotation object that needed to be displayed
at the appropriate size or scale. In the viewport, you would simply hide or show the
annotation layer by using the Viewport Freeze and Viewport Thaw settings.