How do I create this portion of the stair, Image attached

[gherbal.akbar550913]

Hi everyone,

Could you provide me with a strategy to create the portion in red in this stair?

https://lh4.googleusercontent.com/-AJLyz3Q1KVw/TrKxotTLIHI/AAAAAAAAAB8/tv4DyUDo7Fk/s640/stairs.JPG

Is there a way to change the settings in revit and get the same result I want?

[david_peterson]

I think I'd try an in-place extrusion, or a sweep from a profile. Match the material that you are creating the stair with and done.
Other option would be to use a wall and edit the profile or add in a ref plane and attach the top of wall to it.
Just a thought.