simpleType not showing in the dynagram

[radu]

Is it just my schema or other people have the same experience -
simpletype is not showed in the class dynagram?

<xs:simpleType name="ConcordanceUserDecision">
<xs:restriction base="xs:string">
<xs:enumeration value="accept"/>
<xs:enumeration value="reject"/>
<xs:enumeration value="skip"/>
</xs:restriction>
</xs:simpleType>

Is there a preference of some sort to display simple types along with
their enumerations?

Thanks,
Radu