> For the complete documentation index, see [llms.txt](https://scripting.karamba3d.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://scripting.karamba3d.com/2.-scripting-with-karamba3d-inside-grasshopper/2.4-how-to-modify-structural-models.md).

# 2.4: How to Modify Structural Models

{% content-ref url="/pages/-MXH\_8OKtO9W8PyR39vI" %}
[2.4.1: Cross section Optimization](/2.-scripting-with-karamba3d-inside-grasshopper/2.4-how-to-modify-structural-models/2.4.1-cross-section-optimization.md)
{% endcontent-ref %}

{% content-ref url="/pages/-MXH\_8OLycjhQRsWG1uV" %}
[2.4.2: Activation and Deactivation of Elements](/2.-scripting-with-karamba3d-inside-grasshopper/2.4-how-to-modify-structural-models/2.4.2-activation-and-deactivation-of-elements.md)
{% endcontent-ref %}