public class ImixsFeatureContainerEvent extends CustomShapeFeatureContainer {
	....
	@Override
	protected IntermediateCatchEventFeatureContainer createFeatureContainer(
			IFeatureProvider fp) {
		return new IntermediateCatchEventFeatureContainer() {
			....
			@Override
			public IUpdateFeature getUpdateFeature(IFeatureProvider fp) {
				MultiUpdateFeature multiUpdate = new MultiUpdateFeature(fp);
				multiUpdate.addFeature(new UpdateIntermediateCatchEventFeature(
						fp) {
					@Override
					public boolean update(IUpdateContext context) {
						super.update(context);
						setFillColor((ContainerShape) context
								.getPictogramElement());
						return true;
					}
				});
				multiUpdate.addFeature(new UpdateLabelFeature(fp) {
					@Override
					protected String getLabelString(BaseElement element) {
						String l = super.getLabelString(element);
						// change the label string here!
						return l + " some extra information";
					}
				});
				return multiUpdate;
			}
			....
		};
	}
}