You can use the Merged Configuration view to see a flattened view of the server configuration and any recursively included configuration files.
To display the server configuration in a merged view:
This is a screen capture of the Server Configuration editor that uses the Include element to embed the common.xml file into the server.xml configuration file:
<server>
<featureManager>
<feature>jsp-2.2</feature>
<feature>servlet-3.0</feature>
</featureManager>
<application id="Web2.5" location="Web2.5.war" name="Web2.5" type="war"/>
<include location="common.xml"/>
</server>
<server>
<application id="Setup" location="Setup.war" name="Setup" type="war"/>
</server>
This is a screen capture of the Merged Configuration view:
Look under the Configuration Structure sections to see the difference between the Server Configuration editor and Merged Configuration view. The Merged Configuration view replaces the Include: common.xml element from the Server Configuration editor with Application: Setup element.