code: public boolean execute(Canvas target, Menu menu, MenuItem item) {
  		FeatureTransaction featureTransaction = mapWidget.getMapModel().getFeatureEditor().getFeatureTransaction();
  		if (featureTransaction != null) {
  			boolean operationCount = featureTransaction.getOperationQueue().size() > 0;
  			if (operationCount) {
  				// The first addCoordinateOp may not be undone!
  				FeatureOperation firstOperation = featureTransaction.getOperationQueue().get(0);
  				if (firstOperation instanceof AddCoordinateOp) {
  					if (featureTransaction.getNewFeatures()[0].getGeometry().getNumPoints() == 1) {
  						return false;
  					}
  				}
  
  				return true;
  			}
  		}
  		return false;
  	}
docs: This function tries to find out whether or not this menu item should be enabled. Only if there are more then 1
  operations in the feature transaction operation queue, will this menu item be enabled.