Add signal order_position_buttons

src/pretix/control/templates/pretixcontrol/order/index.html

@@ -260,6 +260,8 @@
                                     <br/>
                                     <span class="fa fa-calendar"></span> {{ line.subevent.name }} &middot; {{ line.subevent.get_date_range_display }}
                                 {% endif %}
+                                    {% eventsignal event "pretix.control.signals.order_position_buttons" order=order position=line request=request %}
+                                </div>
                                 {% if line.has_questions %}
                                     <dl>
                                         {% if line.item.admission and event.settings.attendee_names_asked %}