When working on a new version of templates that have not yet been uploaded to the content repository, the templates location for this view repository can be overwritten in a local CAE configuration using a customizer:

<customize:replace id="overrideTemplateLocation"
                   bean="templateLocations">
  <map>
    <!-- the key is the logical name of the view repository -->
    <entry key="customViewRepository"
           value="file:///C:/path/to/template-module/src/main/webapp/WEB-INF/templates"/>
  </map>
</customize:replace>