UocRadioButtonList change default button

Hi

In the default RCDC for creating a new group there is a RadioButton default set in 'owner approval required'

How do I get it set default in 'none' instead ?

I have tried with changing the order of the <my:Option  but that didnt work.

<my:Control my:Name="Join" my:TypeName="UocRadioButtonList" my:Caption="%SYMBOL_JoiningCaption_END%" my:RightsLevel="{Binding Source=rights, Path=MembershipAddWorkflow}">
        <my:Options>
          <my:Option my:Value="Owner Approval" my:Caption="%SYMBOL_OwnerApprovalCaption_END%" my:Hint="%SYMBOL_OwnerApprovalHint_END%"/>
          <my:Option my:Value="None" my:Caption="%SYMBOL_NoneCaption_END%" my:Hint="%SYMBOL_NoneHint_END%"/>
        </my:Options>
        <my:Properties>
          <my:Property my:Name="Required" my:Value="{Binding Source=schema, Path=MembershipAddWorkflow.Required}"/>
          <my:Property my:Name="ValuePath" my:Value="Value"/>
          <my:Property my:Name="CaptionPath" my:Value="Caption"/>
          <my:Property my:Name="HintPath" my:Value="Hint"/>
          <my:Property my:Name="ItemSource" my:Value="Custom"/>
          <my:Property my:Name="SelectedValue" my:Value="{Binding Source=object, Path=MembershipAddWorkflow, Mode=TwoWay}"/>
        </my:Properties>
        <my:Events>
          <my:Event my:Name="SelectedIndexChanged" my:Handler="OnChangeMembershipWorkflow"/>
        </my:Events>
      </my:Control>
      <my:Events>
        <my:Event my:Name="BeforeLeave" my:Handler="OnLeaveOwnersGrouping"/>
      </my:Events>

Regards

Per