Is there a GetNthRecord equivilent for portals

[ddinisco]

I love GetNthRecord, but it does not work in the same is a portal view as it does in the list view. In a related portal I want to hide fieldA when fieldA is the same result in the portal record above. Is there a way to do this?

[comment]

See:
https://fmforums.com/topic/54781-getting-a-value-from-previous-portal-row/?tab=comments#comment-258830