Getting the n-th entry in a structure I guess I could always loop through the structure but is there a simple way to directly get the n-th entry in a structure? (at a given level)
Something like:

{% set $fifth_listing = craft.entries.section('listing').level('1').pos('5') %}
You're close! This should work:

 {% set $fifth_listing = craft.entries.section('listing').level('1').nth(5) %}