diff --git a/playground/myome/pizza-kingdom-silvia/pizza-kingdom-silvia.bpmn b/playground/myome/pizza-kingdom-silvia/pizza-kingdom-silvia.bpmn
index 7e50619d..1f90a7f3 100644
--- a/playground/myome/pizza-kingdom-silvia/pizza-kingdom-silvia.bpmn
+++ b/playground/myome/pizza-kingdom-silvia/pizza-kingdom-silvia.bpmn
@@ -62,13 +62,9 @@ Topping Price: {{topping_price}}
 # Total Price: {{total_price}}</spiffworkflow:instructionsForEndUser>
       </bpmn:extensionElements>
       <bpmn:incoming>Flow_1y8ok4x</bpmn:incoming>
-      <bpmn:outgoing>Flow_07z1ros</bpmn:outgoing>
+      <bpmn:outgoing>Flow_05we09u</bpmn:outgoing>
     </bpmn:manualTask>
     <bpmn:sequenceFlow id="Flow_1y8ok4x" sourceRef="Activity_15463hw" targetRef="Activity_0gznwgh" />
-    <bpmn:endEvent id="Event_1j54928">
-      <bpmn:incoming>Flow_07z1ros</bpmn:incoming>
-    </bpmn:endEvent>
-    <bpmn:sequenceFlow id="Flow_07z1ros" sourceRef="Activity_0gznwgh" targetRef="Event_1j54928" />
     <bpmn:boundaryEvent id="Event_06rpop5" attachedToRef="Activity_0gznwgh">
       <bpmn:extensionElements>
         <spiffworkflow:signalButtonLabel>Change Order</spiffworkflow:signalButtonLabel>
@@ -77,6 +73,51 @@ Topping Price: {{topping_price}}
       <bpmn:signalEventDefinition id="SignalEventDefinition_12dq9wh" />
     </bpmn:boundaryEvent>
     <bpmn:sequenceFlow id="Flow_1ygkfkp" sourceRef="Event_06rpop5" targetRef="Activity_093hb7o" />
+    <bpmn:sequenceFlow id="Flow_05we09u" sourceRef="Activity_0gznwgh" targetRef="Activity_10498nh" />
+    <bpmn:endEvent id="Event_1r2l3t6">
+      <bpmn:incoming>Flow_1gqbe40</bpmn:incoming>
+    </bpmn:endEvent>
+    <bpmn:sequenceFlow id="Flow_1gqbe40" sourceRef="Activity_10498nh" targetRef="Event_1r2l3t6" />
+    <bpmn:subProcess id="Activity_10498nh" name="Collect Payment">
+      <bpmn:incoming>Flow_05we09u</bpmn:incoming>
+      <bpmn:outgoing>Flow_1gqbe40</bpmn:outgoing>
+      <bpmn:startEvent id="Event_1uq698y">
+        <bpmn:outgoing>Flow_1kjlao6</bpmn:outgoing>
+      </bpmn:startEvent>
+      <bpmn:sequenceFlow id="Flow_1kjlao6" sourceRef="Event_1uq698y" targetRef="Activity_134ij16" />
+      <bpmn:userTask id="Activity_134ij16" name="Select Payment">
+        <bpmn:extensionElements>
+          <spiffworkflow:properties>
+            <spiffworkflow:property name="formJsonSchemaFilename" value="payment-form-schema.json" />
+            <spiffworkflow:property name="formUiSchemaFilename" value="payment-form-uischema.json" />
+          </spiffworkflow:properties>
+        </bpmn:extensionElements>
+        <bpmn:incoming>Flow_1kjlao6</bpmn:incoming>
+        <bpmn:outgoing>Flow_0no22ch</bpmn:outgoing>
+      </bpmn:userTask>
+      <bpmn:exclusiveGateway id="Gateway_0uigwa7" default="Flow_0t4fhys">
+        <bpmn:incoming>Flow_0no22ch</bpmn:incoming>
+        <bpmn:outgoing>Flow_0qejpw9</bpmn:outgoing>
+        <bpmn:outgoing>Flow_0t4fhys</bpmn:outgoing>
+      </bpmn:exclusiveGateway>
+      <bpmn:sequenceFlow id="Flow_0no22ch" sourceRef="Activity_134ij16" targetRef="Gateway_0uigwa7" />
+      <bpmn:sequenceFlow id="Flow_0qejpw9" name="credit" sourceRef="Gateway_0uigwa7" targetRef="Activity_0sddg1u">
+        <bpmn:conditionExpression>payment_type == "credit"</bpmn:conditionExpression>
+      </bpmn:sequenceFlow>
+      <bpmn:sequenceFlow id="Flow_0t4fhys" name="default" sourceRef="Gateway_0uigwa7" targetRef="Activity_1t0f3lc" />
+      <bpmn:manualTask id="Activity_0sddg1u">
+        <bpmn:extensionElements>
+          <spiffworkflow:instructionsForEndUser>You selected credit!</spiffworkflow:instructionsForEndUser>
+        </bpmn:extensionElements>
+        <bpmn:incoming>Flow_0qejpw9</bpmn:incoming>
+      </bpmn:manualTask>
+      <bpmn:manualTask id="Activity_1t0f3lc">
+        <bpmn:extensionElements>
+          <spiffworkflow:instructionsForEndUser>You selected cash!</spiffworkflow:instructionsForEndUser>
+        </bpmn:extensionElements>
+        <bpmn:incoming>Flow_0t4fhys</bpmn:incoming>
+      </bpmn:manualTask>
+    </bpmn:subProcess>
   </bpmn:process>
   <bpmndi:BPMNDiagram id="BPMNDiagram_1">
     <bpmndi:BPMNPlane id="BPMNPlane_1" bpmnElement="Process_57rvnyv">
@@ -99,8 +140,12 @@ Topping Price: {{topping_price}}
         <dc:Bounds x="770" y="137" width="100" height="80" />
         <bpmndi:BPMNLabel />
       </bpmndi:BPMNShape>
-      <bpmndi:BPMNShape id="Event_1j54928_di" bpmnElement="Event_1j54928">
-        <dc:Bounds x="932" y="159" width="36" height="36" />
+      <bpmndi:BPMNShape id="Event_1r2l3t6_di" bpmnElement="Event_1r2l3t6">
+        <dc:Bounds x="1152" y="159" width="36" height="36" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="Activity_1707klt_di" bpmnElement="Activity_10498nh">
+        <dc:Bounds x="960" y="137" width="100" height="80" />
+        <bpmndi:BPMNLabel />
       </bpmndi:BPMNShape>
       <bpmndi:BPMNShape id="Event_1qeo4h4_di" bpmnElement="Event_06rpop5">
         <dc:Bounds x="822" y="199" width="36" height="36" />
@@ -121,10 +166,6 @@ Topping Price: {{topping_price}}
         <di:waypoint x="710" y="177" />
         <di:waypoint x="770" y="177" />
       </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="Flow_07z1ros_di" bpmnElement="Flow_07z1ros">
-        <di:waypoint x="870" y="177" />
-        <di:waypoint x="932" y="177" />
-      </bpmndi:BPMNEdge>
       <bpmndi:BPMNEdge id="Flow_1ygkfkp_di" bpmnElement="Flow_1ygkfkp">
         <di:waypoint x="840" y="235" />
         <di:waypoint x="840" y="255" />
@@ -132,6 +173,58 @@ Topping Price: {{topping_price}}
         <di:waypoint x="340" y="320" />
         <di:waypoint x="322" y="217" />
       </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="Flow_05we09u_di" bpmnElement="Flow_05we09u">
+        <di:waypoint x="870" y="177" />
+        <di:waypoint x="960" y="177" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="Flow_1gqbe40_di" bpmnElement="Flow_1gqbe40">
+        <di:waypoint x="1060" y="177" />
+        <di:waypoint x="1152" y="177" />
+      </bpmndi:BPMNEdge>
+    </bpmndi:BPMNPlane>
+  </bpmndi:BPMNDiagram>
+  <bpmndi:BPMNDiagram id="BPMNDiagram_0xchz4u">
+    <bpmndi:BPMNPlane id="BPMNPlane_1elanya" bpmnElement="Activity_10498nh">
+      <bpmndi:BPMNShape id="Event_1uq698y_di" bpmnElement="Event_1uq698y">
+        <dc:Bounds x="142" y="212" width="36" height="36" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="Activity_04u3g0p_di" bpmnElement="Activity_134ij16">
+        <dc:Bounds x="230" y="190" width="100" height="80" />
+        <bpmndi:BPMNLabel />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="Gateway_0uigwa7_di" bpmnElement="Gateway_0uigwa7" isMarkerVisible="true">
+        <dc:Bounds x="395" y="205" width="50" height="50" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="Activity_1m0p8n4_di" bpmnElement="Activity_0sddg1u">
+        <dc:Bounds x="490" y="100" width="100" height="80" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="Activity_05ynetj_di" bpmnElement="Activity_1t0f3lc">
+        <dc:Bounds x="510" y="290" width="100" height="80" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNEdge id="Flow_1kjlao6_di" bpmnElement="Flow_1kjlao6">
+        <di:waypoint x="178" y="230" />
+        <di:waypoint x="230" y="230" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="Flow_0no22ch_di" bpmnElement="Flow_0no22ch">
+        <di:waypoint x="330" y="230" />
+        <di:waypoint x="395" y="230" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="Flow_0qejpw9_di" bpmnElement="Flow_0qejpw9">
+        <di:waypoint x="420" y="205" />
+        <di:waypoint x="420" y="140" />
+        <di:waypoint x="490" y="140" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="422" y="170" width="27" height="14" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="Flow_0t4fhys_di" bpmnElement="Flow_0t4fhys">
+        <di:waypoint x="420" y="255" />
+        <di:waypoint x="420" y="330" />
+        <di:waypoint x="510" y="330" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="418" y="288" width="34" height="14" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNEdge>
     </bpmndi:BPMNPlane>
   </bpmndi:BPMNDiagram>
 </bpmn:definitions>