This image shows the for-each action. In the upper left are the View list, Filter icon, and Detach icon. Below this is the Source section, Find field, and search icon. The Source tree is expanded to show $Netsuite > searchResponse > searchResult. searchResult is further expanded to show status, totoalRecords, pageSize, totalPages, pageIndex, searchid, and recordList. recordList is further expanded to show Customer, which is expanded to show nullFieldList, customForm, entityid, and allName.
On the right side are the following fields from top to bottom: Name, Description, Repeating Element, and Current Element Name. Below this is the Process Items in parallel check box. Repeating Element shows that the Customer element is being looped over.