diff --git a/src/AItem.ts b/src/AItem.ts
index 084818d..1249b11 100644
--- a/src/AItem.ts
+++ b/src/AItem.ts
@@ -12,6 +12,10 @@ export interface HasStateAndFeedbackTopic extends HasStateTopic {
     getStateFeedbackTopic() : string
 }
 
+export interface HasFeedbackTopic {
+    getStateFeedbackTopic() : string
+}
+
 export interface HasInTopic {
     getInTopic() : string
 }
diff --git a/src/MaxWindowContact.ts b/src/MaxWindowContact.ts
index 4e52bea..2c27c5d 100644
--- a/src/MaxWindowContact.ts
+++ b/src/MaxWindowContact.ts
@@ -3,8 +3,9 @@ import { mqttHandler } from './MqttDispatcher'
 import { AHomegearItem } from './AHomegearItem'
 import { ContactExport, ExportType } from './Export'
 import { Disabler } from './Disabler'
+import { HasFeedbackTopic } from './AItem'
 
-export class MaxWindowContact extends AHomegearItem implements Disabler {
+export class MaxWindowContact extends AHomegearItem implements Disabler, HasFeedbackTopic {
     private deviceFeedbackTopic: string
     private stateFeedbackTopic: string
     private stateTopic: string
diff --git a/src/TwoLedSignal.ts b/src/TwoLedSignal.ts
new file mode 100644
index 0000000..56b08f7
--- /dev/null
+++ b/src/TwoLedSignal.ts
@@ -0,0 +1,38 @@
+import { AItem, HasFeedbackTopic } from './AItem'
+
+export class HeatingScene extends AItem  {
+    private led1Topics: string[] = []
+    private led2Topics: string[] = []
+    private led1GreenToken: string
+    private led1RedToken: string
+    private led2GreenToken: string
+    private led2RedToken: string
+
+    constructor(floor: string, room: string, item: string, label: string, 
+        led1Items: HasFeedbackTopic[], led1GreenToken: string, led1RedToken: string,
+        led2Items: HasFeedbackTopic[], led2GreenToken: string, led2RedToken: string) {
+
+        super(floor, room, item, label)
+
+        this.subscribeTopics = []
+        led1Items.forEach((item: HasFeedbackTopic) => {
+            this.led1Topics.push(item.getStateFeedbackTopic())
+            this.subscribeTopics.push(item.getStateFeedbackTopic())
+        })
+        led2Items.forEach((item: HasFeedbackTopic) => {
+            this.led2Topics.push(item.getStateFeedbackTopic())
+            this.subscribeTopics.push(item.getStateFeedbackTopic())
+        })
+        
+        this.led1GreenToken = led1GreenToken
+        this.led1RedToken = led1RedToken
+        this.led2GreenToken = led2GreenToken
+        this.led2RedToken = led2RedToken
+
+    }
+
+
+    processMessage(topic: string, payload: string) : void {
+
+    }
+}
diff --git a/src/main.ts b/src/main.ts
index 2d5fe7a..c0c6a49 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -4,7 +4,7 @@ import * as config from './config'
 import * as logger from './log'
 import { mqttHandler } from './MqttDispatcher'
 
-import { AItem, HasInTopic } from './AItem'
+import { AItem, HasInTopic, HasFeedbackTopic, HasStateAndFeedbackTopic } from './AItem'
 import { HomekitExportType, ExportType } from './Export'
 import { M433SwitchItem } from './M433SwitchItem'
 import { HomematicFourButtonThing, HomematicFourButtonSingleItem } from './HomematicFourButtonThing'
@@ -29,6 +29,8 @@ logger.info("Dispatcher starting")
 
 let allLabeledItems : Array<AItem> = new Array()
 let allThermostatItems : Array<HasInTopic> = new Array()
+let allWindows : Array<HasFeedbackTopic> = new Array()
+
 
 // Anna -----------------------------------------------------------------------------------------------------
 // Anna Aquarium                 14665044 24 1         14665041 24 1
@@ -56,6 +58,7 @@ allLabeledItems.push(annaBedLight)
 let windowContactAnna1st = new MaxWindowContact('1st', 'Anna', 'WindowContact', 'Fenster Anna', 20)
 windowContactAnna1st.start()
 allLabeledItems.push(windowContactAnna1st)
+allWindows.push(windowContactAnna1st)
 
 let thermostatAnna1st = new MaxThermostat('1st', 'Anna', 'Thermostat', 'Thermostat Anna', 21, [windowContactAnna1st])
 thermostatAnna1st.start()
@@ -95,6 +98,9 @@ allLabeledItems.push(matthiasSpeaker)
 let windowContactMatthias = new MaxWindowContact('1st', 'Matthias', 'WindowContact', 'Fenster', 24)
 windowContactMatthias.start()
 allLabeledItems.push(windowContactMatthias)
+allWindows.push(windowContactMatthias)
+
+
 
 // Esszimmer ------------------------------------------------------------------------------------------------
 // Esszimmer kleine Lampe        69653 24 1            69652 24 1
@@ -204,12 +210,15 @@ allLabeledItems.push(bedRoomWindowLight)
 let windowContactBedroomStreet1st = new MaxWindowContact('1st', 'Bedroom', 'WindowContactStreet', 'Fenster Schlafzimmer Strasse', 17)
 windowContactBedroomStreet1st.start()
 allLabeledItems.push(windowContactBedroomStreet1st)
+allWindows.push(windowContactBedroomStreet1st)
 let windowContact1BedroomGarden1st = new MaxWindowContact('1st', 'Bedroom', 'WindowContact1Garden', 'Fenster Schlafzimmer 1 Garten', 18)
 windowContact1BedroomGarden1st.start()
 allLabeledItems.push(windowContact1BedroomGarden1st)
+allWindows.push(windowContact1BedroomGarden1st)
 let windowContact2BedroomGarden1st = new MaxWindowContact('1st', 'Bedroom', 'WindowContact2Garden', 'Fenster Schlafzimmer 2 Garten', 22)
 windowContact2BedroomGarden1st.start()
 allLabeledItems.push(windowContact2BedroomGarden1st)
+allWindows.push(windowContact2BedroomGarden1st)
 
 let thermostatBedroom1st = new MaxThermostat('1st', 'Bedroom', 'Thermostat', 'Thermostat Schlafzimmer', 19, [windowContact1BedroomGarden1st, windowContact2BedroomGarden1st, windowContactBedroomStreet1st])
 thermostatBedroom1st.start()
@@ -274,6 +283,7 @@ allLabeledItems.push(morningLightScene)
 let windowContactBathroomGnd = new MaxWindowContact('Gnd', 'Bathroom', 'WindowContact', 'Fenster Bad unten', 7)
 windowContactBathroomGnd.start()
 allLabeledItems.push(windowContactBathroomGnd)
+allWindows.push(windowContactBathroomGnd)
 
 let thermostatBathroomGnd = new MaxThermostat('Gnd', 'Bathroom', 'Thermostat', 'Thermostat Bad unten', 4, [windowContactBathroomGnd])
 thermostatBathroomGnd.start()
@@ -294,6 +304,7 @@ thermostatBathroomGndCron.start()
 let windowContactBathroom1st = new MaxWindowContact('1st', 'Bathroom', 'WindowContact', 'Fenster Bad oben', 2)
 windowContactBathroom1st.start()
 allLabeledItems.push(windowContactBathroom1st)
+allWindows.push(windowContactBathroom1st)
 
 let thermostatBathroom1st = new MaxThermostat('1st', 'Bathroom', 'Thermostat', 'Thermostat Bad oben', 3, [windowContactBathroom1st])
 thermostatBathroom1st.start()
@@ -315,15 +326,19 @@ thermostatBathroom1stCron.start()
 let windowContactKitchen1 = new MaxWindowContact('Gnd', 'Kitchen', 'WindowContact1', 'Fenster Küche Garten', 11)
 windowContactKitchen1.start()
 allLabeledItems.push(windowContactKitchen1)
+allWindows.push(windowContactKitchen1)
 let windowContactKitchen2 = new MaxWindowContact('Gnd', 'Kitchen', 'WindowContact2', 'Fenster Küche Terassentür Garten', 10)
 windowContactKitchen2.start()
 allLabeledItems.push(windowContactKitchen2)
+allWindows.push(windowContactKitchen2)
 let windowContactKitchen3 = new MaxWindowContact('Gnd', 'Kitchen', 'WindowContact3', 'Fenster Küche Straße 1', 12)
 windowContactKitchen3.start()
 allLabeledItems.push(windowContactKitchen3)
+allWindows.push(windowContactKitchen3)
 let windowContactKitchen4 = new MaxWindowContact('Gnd', 'Kitchen', 'WindowContact4', 'Fenster Küche Straße 2', 13)
 windowContactKitchen4.start()
 allLabeledItems.push(windowContactKitchen4)
+allWindows.push(windowContactKitchen4)
 
 let thermostatKitchen = new MaxThermostat('Gnd', 'Kitchen', 'Thermostat', 'Thermostat Küche', 14, [
   windowContactKitchen1, windowContactKitchen2, windowContactKitchen3, windowContactKitchen4])