 <OpenGeoSysProjectDiff base_file="one_anchor.prj">

   <replace msel="/*/process_variables/process_variable/source_terms/source_term/type/text()">EmbeddedAnchor</replace>

   <remove sel="/*/process_variables/process_variable/source_terms/source_term/anchor_force_constant" />

   <add sel="/*/parameters">

     <parameter>

       <name>force0</name>

       <type>Constant</type>

       <values>0 0</values>

     </parameter>

   </add>

   <add sel="/*/process_variables/process_variable/source_terms/source_term">

     <external_anchor_head_load>force0</external_anchor_head_load>

   </add>

 </OpenGeoSysProjectDiff>