Struts Layout provide so many features for Struts developers,
so if you want to know about more information on struts-layout visit http://struts.improve-technologies.com/.
To know about what the features are there in practical some programming example requried.
To download struts layout tree view example click any of the bellow links
Hotfile : http://hotfile.com/dl/76501724/d7a7b57/TreeApp.rar.html
Mediafire : http://www.mediafire.com/?mzk2mcmw4bl