Show entropy values in J48 trees WEKA

Question

I am quite new to Weka but what I am trying to do is to print the Entropy values for each split in my J48 trees. The command line I am using to train the tree is:

java -classpath CLASSPATH:weka.jar weka.classifiers.trees.J48 -C 0.25 -M 2 -t Matrix70.arff -d 70.model -S ENTROPY

but I have an error message:

Weka exception: Illegal options: ENTROPY

Do you know how to get ENTROPY values?

Thanks