diff --git a/playground/myome/pizza/pizza.bpmn b/playground/myome/pizza/pizza.bpmn
index fc35020f..0299a80a 100644
--- a/playground/myome/pizza/pizza.bpmn
+++ b/playground/myome/pizza/pizza.bpmn
@@ -66,15 +66,18 @@ Topping Price: {{topping_price}}
       <bpmn:incoming>Flow_0gzjjcz</bpmn:incoming>
       <bpmn:outgoing>Flow_0o85f56</bpmn:outgoing>
     </bpmn:manualTask>
+    <bpmn:boundaryEvent id="Event_0wqxp4x" attachedToRef="Activity_06z15yy">
+      <bpmn:extensionElements>
+        <spiffworkflow:signalButtonLabel>Change order</spiffworkflow:signalButtonLabel>
+      </bpmn:extensionElements>
+      <bpmn:signalEventDefinition id="SignalEventDefinition_1yzap31" />
+    </bpmn:boundaryEvent>
   </bpmn:process>
   <bpmndi:BPMNDiagram id="BPMNDiagram_1">
     <bpmndi:BPMNPlane id="BPMNPlane_1" bpmnElement="Process_gpy73c8">
       <bpmndi:BPMNShape id="_BPMNShape_StartEvent_2" bpmnElement="StartEvent_1">
         <dc:Bounds x="179" y="159" width="36" height="36" />
       </bpmndi:BPMNShape>
-      <bpmndi:BPMNShape id="Event_0js86mf_di" bpmnElement="Event_0js86mf">
-        <dc:Bounds x="922" y="159" width="36" height="36" />
-      </bpmndi:BPMNShape>
       <bpmndi:BPMNShape id="Activity_1qdcgfa_di" bpmnElement="Activity_1yfwya2">
         <dc:Bounds x="270" y="137" width="100" height="80" />
         <bpmndi:BPMNLabel />
@@ -90,6 +93,12 @@ Topping Price: {{topping_price}}
         <dc:Bounds x="710" y="137" width="100" height="80" />
         <bpmndi:BPMNLabel />
       </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="Event_0js86mf_di" bpmnElement="Event_0js86mf">
+        <dc:Bounds x="952" y="159" width="36" height="36" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="Event_1ytt6i2_di" bpmnElement="Event_0wqxp4x">
+        <dc:Bounds x="762" y="199" width="36" height="36" />
+      </bpmndi:BPMNShape>
       <bpmndi:BPMNEdge id="Flow_0pze8h7_di" bpmnElement="Flow_0pze8h7">
         <di:waypoint x="215" y="177" />
         <di:waypoint x="270" y="177" />
@@ -108,7 +117,7 @@ Topping Price: {{topping_price}}
       </bpmndi:BPMNEdge>
       <bpmndi:BPMNEdge id="Flow_0o85f56_di" bpmnElement="Flow_0o85f56">
         <di:waypoint x="810" y="177" />
-        <di:waypoint x="922" y="177" />
+        <di:waypoint x="952" y="177" />
       </bpmndi:BPMNEdge>
     </bpmndi:BPMNPlane>
   </bpmndi:BPMNDiagram>