Generalization Relationships

First off, Im new to UML so forgive me for using incorrect terminology.

I have created a class “Input” , and then created another class called “mouse”

I have created an operation “read” in Input.
I create the link between the parent “Input” and the chid “mouse”.
If I view the properties of Mouse, I can see that it has inherited this operation, however when I view the diagram, the operation only shows under the parent.

I have verified that show inherited is checked, however I still don’t see it actually show up. I created a new operation on the child, and it did apear on the diagram so Im confused as to what Im doing wrong.

Any help is appreciated

Dear Larry,
The diagram will not show the operation from the parent. We will consider to add this to the diagram.

Best Regards,