> For the complete documentation index, see [llms.txt](https://btehkmu.gitbook.io/btehkmu-zhi-nan-guide-book/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://btehkmu.gitbook.io/btehkmu-zhi-nan-guide-book/guide-book-en/getting-started/building-basics/3d-modeling/modeling.md).
# Modeling
Select the building outline and stack it up
{% tabs %}
{% tab title="Method 1 (Recommended)" %}
You can use WorldEdit's //stack feature
* Known: building height = 11 meters
Then we can use`//stack 11 up` Because the block height of the building outline is also included.
For a more detailed tutorial on //stack, click here[View](/btehkmu-zhi-nan-guide-book/guide-book-en/magic-wooden-axe-we/worldedit/region-operations.md#stack)
{% hint style="warning" %}
Before stacking, remember to change the entire building outline to the same block for easier construction.
{% endhint %}
{% endtab %}
{% tab title="Method 2 (Not Recommended)" %}
Left-click the first point to select one corner of the building outline, then right-click the second point to select the specific height you want
//replace <\[original block] \[target block] and //replace >\[block] \[block]
\
Within the selected area, place the specified block above ↑ or below ↓ another specified block — useful for small buildings.
{% hint style="danger" %}
Drawback: requires repeatedly entering commands, not suitable for taller buildings
{% endhint %}
{% endtab %}
{% endtabs %}
