Specifies whether to generate the <b><i>Usage Locations</i></b> report.
<p>
For global components, this section (titled <i>"Known Usage Locations"</i>) shows where and
how the given component is used within this XML schema (where the component is defined) and 
within other XML schemas included in the documentation.
<p>
For local elements, any usage locations are actually where the element is defined.
So, the section is titled <i>"Definition Locations"</i>.