You can use several view property files to separate different parts of your code. This is very handy when you for example have big framework and you want to ship defaults that a specific application can override without having to edit your file every time they upgrade.
To achieve this simply add a line to webwork.properties:
webwork.configuration.properties=base-views,views,webwork,webwork/default
All the properties files listed above will be loaded and the priority of them are in left to right order. This means that if you have "foo=bar.jsp" in base-view.properties, and "foo=asd.jsp" in views.properties, "asd.jsp" will be the result of foo.
Note also that any properties files not found will simply be skipped so the specific app doesn't need an empty views.properties file for this to work.