Specify whether to generate the information about a possible attribute value.
This may include:
<ol>
<li>The <i>datatype model</i>. It shows how the attribute datatype is related to the XSD basic simple types.</li>
<li>The value restrictions (that is all <i>actual facets</i>).</li>
<li>The default value of the attribute.</li>
<li>The fixed value of the attribute.</li>
</ol>

<b>Nested Parameter Group:</b>
<dl><dd>
Controls generation of specific items
</dd></dl>