diff --git a/assets/device/classes/airtreatment.json b/assets/device/classes/airtreatment.json
index e3f54ec9..10d68a51 100644
--- a/assets/device/classes/airtreatment.json
+++ b/assets/device/classes/airtreatment.json
@@ -4,5 +4,9 @@
   },
   "description": {
     "en": "Use this device class for any type of air treatment appliance, when the `dehumidifier`, `humidifier`, `diffuser` or `airpurifier` device class doesn't apply. Could be for combi units."
-  }
-}
\ No newline at end of file
+  },
+  "virtualTitle": {
+    "en": "What's the type?"
+  },
+  "allowedVirtual": ["airpurifier", "dehumidifier", "diffuser", "humidifier"]
+}
diff --git a/assets/device/classes/heater.json b/assets/device/classes/heater.json
index 3352b31e..1286518d 100755
--- a/assets/device/classes/heater.json
+++ b/assets/device/classes/heater.json
@@ -23,5 +23,9 @@
     "da": "Brug denne enhedsklasse til varmeapparater, som opvarmer dit hjem.",
     "ru": "Используйте этот класс устройств для обогревателей, которые обогревают ваш дом.",
     "pl": "Użyj tej klasy urządzeń dla grzejników, które ogrzewają dom."
-  }
-}
\ No newline at end of file
+  },
+  "virtualTitle": {
+    "en": "What's the type?"
+  },
+  "allowedVirtual": ["radiator"]
+}
diff --git a/assets/device/classes/mediaplayer.json b/assets/device/classes/mediaplayer.json
index 1223f857..39ed76d9 100644
--- a/assets/device/classes/mediaplayer.json
+++ b/assets/device/classes/mediaplayer.json
@@ -4,5 +4,9 @@
   },
   "description": {
     "en": "Use this device class for media players, when the `Set-top box` device class doesn't apply."
-  }
-}
\ No newline at end of file
+  },
+  "virtualTitle": {
+    "en": "What's the type?"
+  },
+  "allowedVirtual": ["settopbox"]
+}
diff --git a/assets/device/classes/vehicle.json b/assets/device/classes/vehicle.json
index b70aea0e..14467d69 100644
--- a/assets/device/classes/vehicle.json
+++ b/assets/device/classes/vehicle.json
@@ -4,5 +4,9 @@
   },
   "description": {
     "en": "Use this device class for any type of vehicle, when the `car`, `bicycle` or `scooter` device class doesn't apply."
-  }
-}
\ No newline at end of file
+  },
+  "virtualTitle": {
+    "en": "What's the type?"
+  },
+  "allowedVirtual": ["bicycle", "car", "scooter"]
+}
diff --git a/assets/device/classes/windowcoverings.json b/assets/device/classes/windowcoverings.json
index 3df94527..7ece92a8 100755
--- a/assets/device/classes/windowcoverings.json
+++ b/assets/device/classes/windowcoverings.json
@@ -40,6 +40,7 @@
   "allowedVirtual": [
     "sunshade",
     "blinds",
-    "curtain"
+    "curtain",
+    "shutterblinds"
   ]
 }
\ No newline at end of file