Misago/misago/conf/admin.py

from django.conf.urls import url
from django.utils.translation import ugettext_lazy as _


class MisagoAdminExtension(object):
    def register_urlpatterns(self, urlpatterns):
        urlpatterns.namespace(r'^settings/', 'settings')

        urlpatterns.patterns('settings',
            url(r'^$', 'misago.conf.views.index', name='index'),
            url(r'^(?P<group_key>(\w|-)+)/$', 'misago.conf.views.group', name='group'),
        )

    def register_navigation_nodes(self, site):
        site.add_node(name=_("Settings"),
                      icon='fa fa-gears',
                      parent='misago:admin',
                      link='misago:admin:settings:index')