OIC REST endpoint how to select first of multiple repeating xml elements

Summary

OIC REST endpoint how to select first of multiple repeating xml elements

Content

I have an OIC REST endpoint with a request schema and a response schema. Downstream in the integration I have a Database connection to insert into a table.  In the mapping, I need to select the first of multiple repeating xml elements.  I know how to add the For-Each node, but how to I select the first of the repeating elements?