[Plugin: Posts 2 Posts] Nested connections and admin columns

Let me clarify, since I wrote my last post in a bit of a rush: in the example you give for nested connections, you call each_connected before the loop. If I wanted to do my own custom column on the admin side of a custom post type that listed connections, which hook should I used to call each_connected so that it gets called after the query but before the loop on the admin page?