How to set a class to abstract using Microsoft Visio

I'm using Microsoft Visio to draw my UML Diagrams.

More specifically the "UML Class" package as shown below

Here's a screenshot link

I want to define my class as Abstract and I don't find any "Properties tab" or somth to manage any class options.

Is there any way to achieve this another way than simply set the class name as Italic in the text format option ?

EDIT

The solution provided here doesn't seem to fit with newer version of Visio as long as i can't find a "Properties" tab.

Solution

MS Visio is not the greatest tool to create UML models. Of course it lets you draw nice diagrams, especially with the right packages, but what you get is not really related to each other.

Getting back to your question, there are many different possibilities depending on specific UML package you use. If you don't have anything special and you can't find some "Abstract" or IsAbstract" property of the class, you can always just change the text format to Italic.