Display ABAP Logical System in Portal 7.4

Hi All,

I have completed SSO configuration in portal. I logged into portal as admin and checked below link.

    8.a) System Administration – Support- Application Integration and Session Management- Test and Configuration tools

But i am not getting ABAP Logical system name in System drop down.Please check my  screen and give solution for this.Image may be NSFW.
Clik here to view.

Thanks.