I may have phrased the Q incorrectly! However:
1. I have a 1 to many series of relationships: A < B < C < D.
2. A portal for D is on a layout from table A. You can add/ delete portal D items via a script and the actual item is selected via a pop-up/ value list.
Q: Say the user specifies 3 D items in the portal. How do I calculate a text list of those items on the parent record from table C? Eg. I'm not sure how I'd use the UUID from C to dynamically get the related list from D.
I have view Phil's Adventure 2 EVS, but haven't found or managed to adapt an example to fit the above situation.