+ <xpath expr="//field[@name='street']" position="attributes">
+ <attribute name="required">1</attribute>
+ </xpath>
+ <xpath expr="//field[@name='street2']" position="replace"/>
+ <xpath expr="//field[@name='country_id']" position="replace"/>
+ <xpath expr="//field[@name='email']" position="attributes">
+ <attribute name="required">1</attribute>
+ </xpath>