XML Schema 1.1 request: additional default values

In XML Schema 1.0 one can define default values for eg. simple-type
elements:

	<xsd:element name="person" type="xsd:string" default="Jack"/>

It would, however, be useful for choice-modelgroup to be able to define
default element (by eg. its name) from the different alternatives:

<xsd:choice default="Plate">
	<xsd:element name="WellCount" type="xsd:positiveInteger"/>
	<xsd:element name="Plate">
		<xsd:complexType/>
	</xsd:element>
	<xsd:element name="AllPlates">
		<xsd:complexType/>
	</xsd:element>
	<xsd:element name="Automatic">
		<xsd:complexType/>
	</xsd:element>
</xsd:choice>