diff --git a/KleinDocs.tree b/KleinDocs.tree
index d529525..5e5cae8 100644
--- a/KleinDocs.tree
+++ b/KleinDocs.tree
@@ -22,7 +22,9 @@
             <toc-element topic="Wazuh.md"/>
         </toc-element>
         <toc-element topic="Home_automation.md">
-            <toc-element topic="HomeAssistant.md"/>
+            <toc-element topic="HomeAssistant.md">
+                <toc-element topic="Energy-Sockets.md"/>
+            </toc-element>
         </toc-element>
         <toc-element topic="Network.md">
             <toc-element topic="Remote-Wireshark-on-Linux.md"/>
@@ -42,6 +44,7 @@
             <toc-element topic="KleinServer.md"/>
         </toc-element>
         <toc-element topic="Other.md">
+            <toc-element topic="Dev-test.md"/>
             <toc-element topic="ToDo.md"/>
         </toc-element>
     </toc-element>
diff --git a/topics/Energy-Sockets.md b/topics/Energy-Sockets.md
new file mode 100644
index 0000000..3ca5d01
--- /dev/null
+++ b/topics/Energy-Sockets.md
@@ -0,0 +1,3 @@
+# Energy Sockets
+
+
diff --git a/topics/KleinOps/other/Dev-test.md b/topics/KleinOps/other/Dev-test.md
new file mode 100644
index 0000000..bb2470c
--- /dev/null
+++ b/topics/KleinOps/other/Dev-test.md
@@ -0,0 +1,9 @@
+# Dev test
+
+
+```mermaid
+block-beta
+    columns 3
+    a["A label"] b:2 c:2 d
+
+```
\ No newline at end of file