public Command layoutEditParts(final List selectedObjects, final IAdaptable layoutHint) {
...
        GridViewOrdering viewOrdering = ViewOrderingHint.getInstance().consumeViewOrdering(getContainerEditPart(selectedObjects).getNotationView());
        if (viewOrdering == null) {
            viewOrdering = new SimpleViewOrdering();
        }
        viewOrdering.setViews(views);
        final GridView gridView = viewOrdering.getSortedViewsAsGrid();

...     
}