Use this tab to specify settings for Maven projects with WAR artifacts.
Unpack nested archives
Select this option if you want IntelliJ IDEA to unpack nested JAR files. For example, you have a multi-module Maven project where a module depends on the other one and has an EAR or WAR artifact. In this case when you import or deploy such module, IntelliJ IDEA creates a JAR file with module dependencies. If you want a dependency to such module be deployed as a folder instead of a JAR file, select this option.
Show content of elements
Select this option if you want the contents of certain elements to be displayed in the layout tree. Click to select the needed elements: