I am very annoyed with this software. I am unable to do many things with this software. In the book 'UML distilled' many features of UML are discussed which I am not sure how to accomplish with visio 2007. For instance,

1) I can't find the unary association. In the UML static structure under shapes panel on left, there are a lot of components like package, class, blah, blah, binary association, blah, blah, association class. But where is unary association.

2) For sequence diagram, I created a message (any of sync, async, call type message, ordinary message). The I tried to incorporate some parameter information. I went to the properties. There were a category called arguments. But selecting that shows a table where arguments are supposed to be shown. But all are diasbled.

3) For sequence diagram, there is no component delete (the big X) in the UML Sequence.

4) For class diagram, there is supposed to be a comment compartment where comments like mentioning the responsibilities are allowed using a comment prefixed with "--". But I am not sure how to accomplish them.

5) there is also supposed to be a way to indicate static properties of a class. But I am not sure how to do that in visio.

6) there is supposed to be a stereotype for class <>. But in the stereotype drop down there is no stereotype.

7) where is the ball and socket component?