diff --git a/configuration.yaml b/configuration.yaml
index 9c4e4d3..8eff98c 100644
--- a/configuration.yaml
+++ b/configuration.yaml
@@ -28,6 +28,7 @@ timer:
     name: Time remaining
     duration: 600 # Updated this to the number of seconds you wish
 
+group: !include groups.yaml
 sensor: !include_dir_merge_list sensors
 switch: !include_dir_merge_list switches
 automation: !include_dir_merge_list automations
diff --git a/groups.yaml b/groups.yaml
new file mode 100644
index 0000000..b68496d
--- /dev/null
+++ b/groups.yaml
@@ -0,0 +1,4 @@
+Fenster Lampen:
+  entities:
+    - light.0xec1bbdfffe9cc96e_light
+    - light.0xec1bbdfffe59b929_light