diff --git a/Puffer_Speicher/form.json b/Puffer_Speicher/form.json
index 979eedf..f2f1d75 100644
--- a/Puffer_Speicher/form.json
+++ b/Puffer_Speicher/form.json
@@ -49,6 +49,41 @@
             "name": "PufferTeilLeistung",
             "caption": "Puffer Teillast",
             "suffix": "Watt"
+        }, 
+        {
+            "type": "Select",
+            "name": "StageSelect",
+            "caption": "Stufen",
+            "options": [
+                { "caption": "1-stufig", "value": 1 },
+                { "caption": "2-stufig", "value": 2 },
+                { "caption": "3-stufig", "value": 3 },
+                { "caption": "4-stufig", "value": 4 }
+            ]
+            },
+            {
+            "type": "NumberSpinner",
+            "name": "Stage1",
+            "caption": "Stufe 1",
+            "visible": "{StageSelect} >= 1"
+            },
+            {
+            "type": "NumberSpinner",
+            "name": "Stage2",
+            "caption": "Stufe 2",
+            "visible": "{StageSelect} >= 2"
+            },
+            {
+            "type": "NumberSpinner",
+            "name": "Stage3",
+            "caption": "Stufe 3",
+            "visible": "{StageSelect} >= 3"
+            },
+            {
+            "type": "NumberSpinner",
+            "name": "Stage4",
+            "caption": "Stufe 4",
+            "visible": "{StageSelect} >= 4"
         },
         {
             "type": "Label",
diff --git a/Puffer_Speicher/module.php b/Puffer_Speicher/module.php
index 889465f..677086e 100644
--- a/Puffer_Speicher/module.php
+++ b/Puffer_Speicher/module.php
@@ -8,6 +8,10 @@ class Puffer_Speicher extends IPSModule
 
         $this->RegisterPropertyInteger("PufferLeistung", 6000);
         $this->RegisterPropertyInteger("PufferTeilLeistung", 3000);
+        $this->RegisterPropertyInteger("Stage1", 1);
+        $this->RegisterPropertyInteger("Stage2", 2);
+        $this->RegisterPropertyInteger("Stage3", 3);
+        $this->RegisterPropertyInteger("Stage4", 4);
         $this->RegisterPropertyInteger("ZeitKonstante", 120);
         $this->RegisterPropertyInteger("Pufferfuehler_PT1", 0);
         $this->RegisterPropertyInteger("Heizkontakt2_Puffer", 0);