If you contact me via my website, I can show you the technique in action on a live production app.
Basically the technique is to have a table of users with key field User. The user clicks and launches off the Parent record and the URL formula button creates or updates their User record with the Focus Parent Record ID#. Then the user will redirect to a report of children. That User Focus Record ID# is looked up down to the child records via a relationship with a reference formula field if User().
So now it knows the parent record to hook it up to and a URL formula field can make that API_Edit.
I'm at
QuickBaseCoach.com
