Large applications often consist of hundrets of actions. IMO it is a major benefit of struts-convention-plugin that it is not necessary to configure all those actions in xml files. As xml files would become huge and hard to maintain. The same applies to tiles xml files. Currently it is necessary to configure tiles-definitions for all those actions in xml files which makes them huge and hard to maintain.
It would be great if configuration of tiles-definitions could be done by annotating actions, in a similar way actions can be configured with annotations from convention-plugin.