In admin2, this is all that seems to be needed:
CachedViewPreferences[full]=admin_navigation_content=1;admin_children_viewmode=list;admin_list_limit=1

While it originally was:
CachedViewPreferences[full]=admin_navigation_content=1;admin_children_viewmode=list;admin_list_limit=1;admin_edit_show_locations=0;admin_leftmenu_width=10;admin_url_list_limit=10;admin_url_view_limit=10;admin_section_list_limit=1;admin_orderlist_sortfield=user_name;admin_orderlist_sortorder=desc;admin_search_stats_limit=1;admin_treemenu=1;admin_bookmarkmenu=1;admin_left_menu_width=13