Too tired of searching through the long struts config file for the module you are working on? Get a new config file for your modules. All you need is to modify the web.xml to use multiple config files.
<servlet>
<servlet-name>action</servlet-name>
<servlet-class>
org.apache.struts.action.ActionServlet
</servlet-class>
<init-param>
<param-name>config</param-name>
<param-value>
/WEB-INF/struts-config.xml,
/WEB-INF/module1.xml,
/WEB-INF/module2.xml,
/WEB-INF/module3.xml
</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
When the ActionServlet is loaded, Struts will merge the results of the specified configuration files into a single in-memory configuration. Just make sure that syntax of each file is correct.