}
@Override
public PropertySheetHolder[] getChildPropertySheetHolders() {
ArrayList<PropertySheetHolder> children = new ArrayList<PropertySheetHolder>();
children.add(new SimplePropertySheetHolder("Feeders", getFeeders()));
children.add(new SimplePropertySheetHolder("Heads", getHeads()));
children.add(new SimplePropertySheetHolder("Cameras", getCameras()));
children.add(new SimplePropertySheetHolder("Driver", Collections.singletonList(getDriver())));
return children.toArray(new PropertySheetHolder[]{});
}