An optional region is a region in a template that users can set to show or to hide in a template-based document. Use an optional region when you want to set conditions for displaying content in a document.
When you insert an optional region, you can set specific values for a template parameter or define conditional statements in a template; you can later modify the optional region if necessary. Based on the conditions you define, template users can edit the parameters in template-based documents they create and control whether the optional region displays or not (see Modifying template properties).
This section covers the following topics: