How can we add responsibilities for Class Diagram?

I am using the latest version of VP but I can’t find where to add responsibilities to my class diagram as my Prof. introduces it to me. It’s a fourth compartment in which we can write what the class do. Anyone know how to open it?

Thanks in advance!
Tu Nguyen

Dear Nguyen,

This feature is not currently available in VP-UML. However, you can document a class’s responsibilities in its “Documentation” field (in the open specification dialog box), or by attaching a note if you want the text to be visible in the diagram.