Change to the directory RegistryDomain-base/domains/registry/applications/j2ee-modules/soar/WEB-INF/classes.
Open the file jaxr-ebxml.properties in a text editor.
Find the definition of the property jaxr-ebxml.thin.defaultQueryPanel. By default, this property is commented out:
#jaxr-ebxml.thin.defaultQueryPanel=
Remove the comment character (#).
Set the value of the property by specifying the logical identifier of the query that will be the default, as in the following example:
jaxr-ebxml.thin.defaultQueryPanel=urn:oasis:names:tc:ebxml-regrep:query:MyQuery
Save and close the jaxr-ebxml.properties file.
Follow the instructions in To Stop and Restart the Application Server Domain for the Registry.