When you use Go to Related record to go to a different record, the change in records resets the portal scroll bar.
If you can show the data that you need without changing records, then you will not get this result.
Here's an example:
Let's say that you have a primary key defined for JobTracking as: __pkJobTrackingID. If you add another table occurrence with this relationship:
JobTracking::SelectedJob = JobTracking 3::__pkJobTrackingID
Then you can place fields from JobTracking 3 on your JobTracking based layout and your script performed by clicking a portal row can use this script:
Set Field [JobTracking::SelectedJob ; Job Tracking 2::__pkJobTrackingID ]
Thanks Phil... I will give this a shot and update!