The sourcePath parameter adds additional sources to be documented. The subpackages parameter can be used in conjunction to add specific subpackages in the source path.
<project> ... <reporting> <plugins> <plugin> <groupId>net.sf.jfxdplugin</groupId> <artifactId>maven-javafxdoc-plugin</artifactId> <version>1.0</version> <configuration> <sourcePath>${project.build.directory}/src/main/other</sourcePath> <subpackages>org.myorg.pkg1:org.myorg.pkg2</subpackages> </configuration> </plugin> </plugins> ... </reporting> ... </project>