# 3.3.10: Cross Section Selector

The component **“CroSecSelect”** deals with selecting cross sections by name or index from a list of cross sections. Provide the name(s) or index(es) of desired cross sections in the **“Name|Ind”**-plug. Cross section names are not case sensitive. All characters coming after “#” count as remark. It is possible to use regular expressions for selection (these start with “&”). List indexes start from zero.

**“CroSecSelect**” lets you specify beams via the **“Elems|Ids”**-plug which shall be assigned a specific cross section. The **“Assemble”**-component sets the cross-sections of these elements accordingly. Alternatively, cross sections can be directly plugged into the element-creation-components.

In case one does not supply a list of cross sections at the **“CroSec”**-input-plug, the cross section table that comes with Karamba3D is used by default.

![Fig. 3.3.10.1: Cantilever with four different cross sections taken from the standard cross section table](https://1646753513-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M9XteyGDAU3Odla53cC%2Fsync%2F169058a3f7416843d6d78f8c43816c17b29fcabe.png?generation=1591871193076145\&alt=media)