diff --git a/docs/index.md b/docs/index.md
index d9c19dc..c670e46 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -1,21 +1,17 @@
+
+[![The EPICS Logo](images/EPICS_black_blue_logo_rgb_small_v03.jpg)](https://epics-controls.org/)
+
 # EPICS Training at PSI
 
 
-![The EPICS Logo](images/EPICS_black_blue_logo_rgb_small_v03.jpg)
-
-
 This page is the starting page to enable you to navigate the different sections of EPICS Training content.
 
 You will find
 
 - Anouncements of presentations and on-site trainings
-
 - Tutorials that allow you to learn at your own pace
-
 - Guides with step-by-step reciepes to solve your problems yourself
-
 - Reference guides and links to further documentation of drivers
-
 - Explanations about concepts and setups to allow you a in-depth understanding
 
 
diff --git a/docs/tutorials/cooler_simulation.md b/docs/tutorials/cooler_simulation.md
new file mode 100644
index 0000000..7b2408e
--- /dev/null
+++ b/docs/tutorials/cooler_simulation.md
@@ -0,0 +1,9 @@
+# Tutorial Collection about the Cooler Simulation
+
+
+This collection contains tutorials about
+
+- How to create your own caQtDM display
+- How to create your own IOC with template file, substitution file, 
+and startup script
+
diff --git a/zensical.toml b/zensical.toml
index 1f2e620..e0525b7 100644
--- a/zensical.toml
+++ b/zensical.toml
@@ -39,7 +39,10 @@ Copyright © 2026 Paul Scherrer Institute
 # Read more: https://zensical.org/docs/setup/navigation/
  nav = [
    { "Home" = "index.md" },
-   { "Tutorials" = "tutorials/index.md"},
+   { "Tutorials" = [
+        "tutorials/index.md"
+        "tutorials/cooler_simulation.md"
+   ]},
    { "Recipes and Guides" = "stepbystep/index.md"},
    { "References" = "reference/index.md"},
    { "Explanations" = "explanation/index.md"},