> For the complete documentation index, see [llms.txt](https://wiki.hmmbo.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wiki.hmmbo.com/fundamentals/gui-help/edit-menu/customize-replace-block.md).

# Customize Replace Block

1. Execute the command `/regen menu` to launch the graphical user interface.
2. Click on the "Edit Menu" option in the main interface.
3. Select either "Global" or "Region" settings based on your preference.
4. Identify and select the specific block for which you want to customize the replace block.
5. Click on "Customize Replace Block."
6. Shift-click to delete the existing block or click to edit its chance.
7. Click "Add" (Nether Star) to add more replace blocks.
8. Add blocks into the GUI that you want as replace blocks.
9. Click "Add Block" and you're done.

{% hint style="success" %}
You can also use itemsadder blocks.
{% endhint %}

{% hint style="warning" %}
if you delete everything you will get AIR as the Replace block.
{% endhint %}

{% hint style="danger" %}
Make sure you don't add non regenerating blocks as replace blocks.
{% endhint %}