<group serverBehavior="Dynamic Radio.htm" subType="UD1" hideFromBuilder="true">
  <groupParticipants selectParticipant="dynamicRadioButtns_atr_UD1">
    <groupParticipant name="dynamicRadioButtns_atr_UD1" /> 
    <groupParticipant name="dynamicRadioButtons_value" partType="multiple" /> 
  </groupParticipants>
</group>
