Is it possible to generate extended mock response?

Hi to all! Let say I have some response message. This response has the the element of some type

<xs:element minOccurs="0" name="property" type="ns1:DbPropertyXso">
      <xs:annotation>
           <xs:documentation>Data object of type IDbProperty.</xs:documentation>
      </xs:annotation>
</xs:element>

And this type DbPropertyXso is the base type for a few other types.

<xs:complexType name="DbAircraftXso">
      <xs:complexContent>
         <xs:extension base="tns:DbPropertyXso">

SoupUI generates the responses depending only on base type. So my question is: Is there any possibility to generate mock responses depending on one of concrete subtypes or for each subtype of DbPropertyXso?