To display related lists for each row in a #Data List :

1. Create a Pipeline containing one or more #Data Lists, each configured with dynamic filters based on a Context Record ID.
2. On the parent #Data List Executable, set the Q: Row Related Lists field to the Pipeline created in Step 1.

Once configured, a standard Related Lists row action appears automatically for each row. Clicking it displays the related lists defined in the Pipeline.

By default, related lists open in a modal popup. To show them inline beneath the main #Data List instead, set Show Row's Related Lists Below to TRUE.