To post an image to a reply, you can upload the image to a file sharing site and then post the link here. You can also use edit post to modify your original post to include a new image file. You may need to delele the original change, save the post, edit it again and upload the new image before others can see the new image--that's something we just recently figured out here.
Please note that this is the first post where you have provided all the needed info, specifically the relationship used and that you want to scroll the portal to reveal the same record in the portal as is current on the layout.
Go To Portal Row is a script step that you can use to scroll the portal. When using a script to interact with a portal like this, it's safest to use the name box at the top of the Inspector's position tab to give the portal an object name. Let's name it "AllStudentsPortal".
This script will scroll the portal until the record shown on the layout is also visible in the portal. This can be fine tuned to position the record as near to the top as possible, but I'll leave that part up to you.
Go to object ["AllStudentsPortal]
Go to Portal Row [First]
Exit Loop If [tblStudent::fldStudentID = tblStudentSelfJoin::fldStudentID]
Go To Portal Row [next ; exit after last]
The 'exit after last' parameter shouldn't be needed, but including it ensures that if you make a mistake with the expression in Exit Loop, you won't get trapped inside an infinite loop.