Specialized Administration > Supporting Visualization and Publishing > WVS Publish Rules > Evaluating Publish Rules > Introduction > Evaluating Publish Rules Logic > Step 9: Processing <param-set-ref>
  
Step 9: Processing <param-set-ref>
Use the <param-set-ref> sub-element within a single <publish on=...> element block to reference multiple <param-set> element definitions in the same XML file, for example, for configuring post-publishing of different Additional File Types to create a separate WTDDocument object for each file type, using the AdditionalFilesPostPublishDelegate.
<publish on="checkin” display-label="CAD Part - Check-in" additional-files="part_files">
<param-set-ref name="Additional Files Post Publish to STEP Document"/>
<param-set-ref name="Additional Files Post Publish to IGES Document"/>
</publish>
For an illustration of the syntax, see the out-of-the-box PublishRules-AdditionalFiles.xml file that resides in <Windchill>/codebase/com/ptc/wvs/server/xml.