diff --git a/.gitmodules b/.gitmodules
index 9b74655..64687ac 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -10,3 +10,6 @@
 [submodule "book/external/latex-to-markdown-conversion"]
 	path = book/external/latex-to-markdown-conversion
 	url = https://gitlab.tudelft.nl/opentextbooks/latex-to-markdown-conversion.git
+[submodule "book/external/Useful_python_code"]
+	path = book/external/Useful_python_code
+	url = https://github.com/TeachBooks/Useful_python_code.git
diff --git a/book/_toc.yml b/book/_toc.yml
index 78b0275..803036e 100644
--- a/book/_toc.yml
+++ b/book/_toc.yml
@@ -60,10 +60,6 @@ parts:
           sections:
           - file: features/jupyterlite/configuration
           - file: features/jupyterlite/including-jupyterlite
-      - file: helper_code/intro.md
-        sections:
-        - file: external/latex-to-markdown-conversion/README.md
-       
 
   - caption: Examples
     chapters:
@@ -75,4 +71,15 @@ parts:
       - file: examples/example_gumbel.ipynb
       - file: examples/example_quiz_interactive.ipynb
       - file: examples/coding_theory_widgets.ipynb
-      - file: examples/parametric_questions.ipynb
\ No newline at end of file
+      - file: examples/parametric_questions.ipynb
+
+  - caption: Editing tools
+    chapters:
+    - file: tools/figmaker
+    - file: helper_code/intro.md
+      sections:
+      - file: external/latex-to-markdown-conversion/README.md
+      - file: external/Useful_python_code/snippit.ipynb
+      - file: external/Useful_python_code/extensionfildownloadreturn.ipynb
+      - file: external/Useful_python_code/figshrinker.ipynb
+       
\ No newline at end of file
diff --git a/book/basic-features/figures.md b/book/basic-features/figures.md
index 1c3f562..8fcf942 100644
--- a/book/basic-features/figures.md
+++ b/book/basic-features/figures.md
@@ -131,13 +131,3 @@ name: demoexample4
 example 4:including figclass: margin
 ```
 
-## Figure syntax maker
-One might quickely forget the code for making figures, here is a useful tool to make your figures, just specify all information and the code is produced for you:
-
-<div id="figuur_formulier">
-
-</div>
-<div id="listContainer">
-  
-</div> 
-
diff --git a/book/basic-features/overview.md b/book/basic-features/overview.md
index b2d5623..5472fda 100644
--- a/book/basic-features/overview.md
+++ b/book/basic-features/overview.md
@@ -2,7 +2,7 @@
 
 ```{admonition} User types
 :class: tip
-This section is useful for user type 3-6.
+This section is useful for user type 3-5.
 ```
 
 A short description on basic features is given here:
diff --git a/book/external/Useful_python_code b/book/external/Useful_python_code
new file mode 160000
index 0000000..c8327b3
--- /dev/null
+++ b/book/external/Useful_python_code
@@ -0,0 +1 @@
+Subproject commit c8327b3e2cc68d44958974a47c940bc89f4bb32b
diff --git a/book/helper_code/intro.md b/book/helper_code/intro.md
index 46c4ba7..b2d7862 100644
--- a/book/helper_code/intro.md
+++ b/book/helper_code/intro.md
@@ -1,3 +1,10 @@
 # Scripts for automating workflow
 
-This chapter contains a few scripts which can be useful in the book-editing process.
\ No newline at end of file
+This chapter contains a few scripts which can be useful in the book-editing process:
+ - [LaTeX to markdown conversion](../external/latex-to-markdown-conversion/README.md)
+ - [Snippitall](Snippitall) to insert the same code snippet at a certain point in each md file in a specific folder and all subfolder. 
+ - [Snippitonce](Snippitonce) to insert the same code snippet at a certain point in each md file only in a specific folder. 
+ - [Extensionchecker](extensionchecker) to identify the kind of files present in subfolder
+ - [Filedownloader](filedownloader) to return the downloadlink for markdown for all files with a specified extension
+ - [Figreturner](figreturner) to return the markdown code for a figure in a specific extension
+ - [Figshrinker](../external/Useful_python_code/figshrinker.ipynb) to compress JPEG images.
\ No newline at end of file
diff --git a/book/installation-and-setup/user_types.md b/book/installation-and-setup/user_types.md
index 0a92d71..3cf1168 100644
--- a/book/installation-and-setup/user_types.md
+++ b/book/installation-and-setup/user_types.md
@@ -1,6 +1,6 @@
 # User types
 
-Different types of users will interact with the website or the Jupyter Books differently and will therefore need to know more or less about the composition of the book. For now we will differentiate 6 types of users.
+Different types of users will interact with the website or the Jupyter Books differently and will therefore need to know more or less about the composition of the book. For now we will differentiate 5 types of users.
 
 1. **Students providing feedback on the published website**.<br>  <img src="figures/type 1.jpg" alt="Example Image" align="right" width="130" style="margin: 10px;"> There are multiple tools of providing feedback in the built book:  a) using the issue button in the top-right corner to directly create issues visible to the editor team. b) Using the [hypothesis](https://jupyterbook.org/en/stable/interactive/comments/hypothesis.html)-extension which     allows public/private highlighting and annotating parts of the book. An example can be seen on the [MUDE website](https://mude.citg.tudelft.nl/book/intro.html). c) Using the [Utterances](https://jupyterbook.org/en/stable/interactive/comments/utterances.html)-extension which allows commenting on pages for books which are hosted on GitHub visible for everyone. Those comments are converted to issues on GitHub for the editors to handle.
 
diff --git a/book/tools/figmaker.md b/book/tools/figmaker.md
new file mode 100644
index 0000000..534a57d
--- /dev/null
+++ b/book/tools/figmaker.md
@@ -0,0 +1,15 @@
+# Figure syntax maker
+
+```{admonition} User types
+:class: tip
+This section is useful for user type 3-5.
+```
+
+One might quickely forget the code for making figures, here is a useful tool to make your figures, just specify all information and the code is produced for you:
+
+<div id="figuur_formulier">
+
+</div>
+<div id="listContainer">
+  
+</div> 
\ No newline at end of file