Callout
blocks are symbols that reference other drawing sheets.
You can use blocks as callout blocks or label blocks in a drawing
sheet set.
A callout block can be an individual drawing file or a block
definition within another drawing or template.
A callout block includes attribute definitions, such as the view
number, the drawing sheet number, and other additional information associated with
the drawing sheet or view that you have referenced. Callout blocks automatically
update when drawing sheet set properties change.
You can assign any number of callout blocks to an entire drawing
sheet set or to a view class.
To use callout blocks and place them on a
sheet: