How to load more than one widgetset in an application

Can someone please let me know if this is possible? AFAIK, you can only set one widgetset in the web.xml

<init-param>
	<param-name>widgetset</param-name>
	<param-value>com.widget.gwt.WidgetSet</param-value>
</init-param>

Thanks,
Tien

Not possible. Instead, combine the widgetsets to form one widgetset.