code: public boolean isSingleWidget(String widgetId) {
  		try {
  			WidgetState state = (WidgetState) storageService.getEntityById(widgetId);
  			DashboardState dState = getDashboardState(state);
  			if (dState.getColumnCount() > 1) {
  				return false;
  			}
  			if (dState.getWidgetStates().size() > 1) {
  				return false;
  			}
  			return true;
  		} catch (NotFoundException e) {
  			return false;
  		}
  	}
docs: just a single widget in a dashboard with a single column