Hi Shant,

Thanks for your post.
In Astah, parameterized list types can be represented by using Template Binding. In Astah 6.7, directly entering "List<MyClassA>" in Type can create a Class that is using Template Binding.

So for your case, please try this:

(1) Create a Class Diagram and a Class and add an operation to the Class.

(2) Directly enter "myMethod(param1 : int, param2 : List<MyClassB>): List<MyClassA>" to its operation.









(3) The Class appears as below when you hit enter







And when you see the structure tree, you can see that "List<MyClassA>" and "List<MyCassB>" are created which are used Template Binding.


















To see the Template Bindings of these Classes, bring them onto diagram from the structure tree, and select [Show Hidden Relationships] from its pop-up menu. You can see Template bindings like below.









Also regarding the name change, when you rename "MyClassA", that will be reflected to the "List<MyClassA>"











Hope this helps. If this doesn't meet what you were asking, please let us know.

Cheers,
SJ