diff --git a/INSTALL.md b/INSTALL.md
index b7a6f3e..836fecc 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -1,3 +1,5 @@
+# Create Users for ssh operation
+```bash
 sudo useradd unlock -m -s /opt/keymatic/keymatic.py
 sudo useradd lock -m -s /opt/keymatic/keymatic.py
 sudo useradd open -m -s /opt/keymatic/keymatic.py
@@ -12,14 +14,29 @@ sudo ln -s /opt/keymatic/authkeyfile/authorized_keys /home/unlock/.ssh/authorize
 sudo ln -s /opt/keymatic/authkeyfile/authorized_keys /home/lock/.ssh/authorized_keys
 sudo ln -s /opt/keymatic/authkeyfile/authorized_keys /home/open/.ssh/authorized_keys
 sudo ln -s /opt/keymatic/authkeyfile/authorized_keys /home/door/.ssh/authorized_keys
+```
 
-
+# Configure Keymatic (Create user)
+```bash
 https://www.npmjs.com/package/keyble
 sudo apt install npm
 sudo npm install --update --global --unsafe-perm keyble
 sudo keyble-registeruser --user_name PI --qr_code_data M001A.....
+```
 
+# Create config
 create config.py
 
+# Automatic Update of SSH Keys from LDAP
+```bash
 crontab
   2 *    *  *   *    cd /opt/keymatic;./update_keys.py
+```
+
+# Optional: Create SSH-User for locking with HASS
+```bash
+sudo useradd lock-hass -m -s /opt/keymatic/keymatic.py
+sudo mkdir /home/lock-hass/.ssh
+sudo chown lock-hass.lock-hass /home/lock-hass/.ssh
+#add authorized_keys entry
+```